Subscribe

Read performance is very poor in nfs share

 

Hi,

 

I have Netapp 3220 Box and It has 7 mode 8.1.

 

When i am trying to rsync by mounting in linux box or taking backing using netback mounted on linux as a nfs share. It is taking 5 to 6 days to complete 1.4TB size disk. I dont know why this much of the time it is taking time.

 

We have 10G uplink for network data connectivity.

 

I might have done wrong configuration. Please advice to fix this issue.

 

Below is the share

 

/vol/home1 -sec=sys,rw,root=10.193.180.0/24:10.193.182.0/24:10.193.184.0/22,nosuid

 

and Below is the snapshot of the  performance. and Please let me know any thing i need to provide info  

 

Read performance using DD

 

[root@vncin56 ~]# dd if=/home1/home1.img of=/dev/null bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 0.888529 seconds, 1.2 GB/s

 

Write performance using DD

 

[root@vncin56 ~]# dd if=/dev/zero of=/home1/home1.img bs=1G count=1 oflag=dsync
1+0 records in
1+0 records out
1073741824 bytes (1.1 GB) copied, 8.089 seconds, 133 MB/s

 

configured with Parity DP and we have 24 SATA 1.62TB disks and 1 disks as spare.

 

Thanks

 

 

 

 

 

 

 

 

 

Capture.PNG

Re: Read performance is very poor in nfs share

Have a look at XCP.

 

http://xcp.netapp.com

Re: Read performance is very poor in nfs share

Sounds like your network may be misconfigured.

 

If you are using 10-gig, check all this:

1. on the netapp -> ifstat -a (command in 7-mode or a node shell command in cdot)

-> look for any errors. Errors could be bad cable, bad transceiver, etc.

-> Flow control: make sure FLOW CONTROL is OFF. This is indicated near the end of the output

2. Jumbo Frames. Are you using them? are htey configured all the way through? 

Re: Read performance is very poor in nfs share

Hi TMAC,

 

Jumbop frames not enabled.

 

When try to make none for flow control

 

 ifconfig my10g flowcontrol none
ifconfig: (my10g) : SIOCSFLOWCONTROL - Operation not supported by device

bheema> Thu Jan  5 20:36:04 PST [bheema:net.ifconfig.ioctlError:info]: ioctl error encountered while configuring interface 'my10g' using ioctl 'SIOCSFLOWCONTROL' (error string='Operation not supported by device', error code=19).

 

and For device access /Management also i am using same my10G interface and not e0M

 

my10g interface in using for nfs shares.

 

ifstat -a                     

-- interface  e0a  (64 days, 22 hours, 11 minutes, 57 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:          0
 Runt frames:         0  | Fragment:            0  | Long frames:         0
 Jabber:              0  | Alignment errors:    0  | Bus overruns:        0
 Queue overflows:     0  | Xon:                 0  | Xoff:                0
 Jumbo:               0  | Reset:               0  | Reset1:              0
 Reset2:              0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 Queue overflows:     0  | No buffers:          0  | Max collisions:      0
 Single collision:    0  | Multi collisions:    0  | Late collisions:     0
 Timeout:             0  | Xon:                 0  | Xoff:                0
 Jumbo:               0
LINK_INFO
 Current state:     down | Up to downs:         1  | Auto:               off
 Speed:           10000k | Duplex:            full | Flowcontrol:       none


-- interface  e0b  (64 days, 22 hours, 11 minutes, 57 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:          0
 Runt frames:         0  | Fragment:            0  | Long frames:         0
 Jabber:              0  | Alignment errors:    0  | Bus overruns:        0
 Queue overflows:     0  | Xon:                 0  | Xoff:                0
 Jumbo:               0  | Reset:               0  | Reset1:              0
 Reset2:              0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 Queue overflows:     0  | No buffers:          0  | Max collisions:      0
 Single collision:    0  | Multi collisions:    0  | Late collisions:     0
 Timeout:             0  | Xon:                 0  | Xoff:                0
 Jumbo:               0
LINK_INFO
 Current state:       up | Up to downs:         0  | Auto:                on
 Speed:            1000m | Duplex:            full | Flowcontrol:       full


-- interface  e1a  (64 days, 22 hours, 11 minutes, 57 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:      781m | Total bytes:      3058g
 Total errors:      911  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:        905
 Runt frames:         0  | Fragment:            0  | Long frames:         0
 Jabber:              6  | Bus overruns:        0  | Xon:                 0
 Xoff:                0  | Jumbo:               0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:      757m | Total bytes:     88218m
 Total errors:        0  | Total discards:      0  | Multi/broadcast:   934k
 Queue overflows:     0  | No buffers:          0  | Xon:                 0
 Xoff:                0  | Jumbo:               0  | TSO non-TCP drop:    0
 Split hdr drop:      0  | Pktlen:              0  | Timeout:             0
 Timeout1:            0
LINK_INFO
 Current state:       up | Up to downs:         2  | Speed:           10000m
 Duplex:            full | Flowcontrol:       full


-- interface  e1b  (64 days, 22 hours, 11 minutes, 57 seconds) --

RECEIVE
 Frames/second:    1419  | Bytes/second:      254k | Errors/minute:       0
 Discards/minute:     0  | Total frames:    12734m | Total bytes:      3916g
 Total errors:      463  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:        459
 Runt frames:         0  | Fragment:            0  | Long frames:         0
 Jabber:              4  | Bus overruns:        0  | Xon:                 0
 Xoff:                0  | Jumbo:               0
TRANSMIT
 Frames/second:    1107  | Bytes/second:     3301k | Errors/minute:       0
 Discards/minute:     0  | Total frames:     5846m | Total bytes:     24028g
 Total errors:        0  | Total discards:      0  | Multi/broadcast:   941k
 Queue overflows:     0  | No buffers:          0  | Xon:                 0
 Xoff:                0  | Jumbo:               0  | TSO non-TCP drop:    0
 Split hdr drop:      0  | Pktlen:              0  | Timeout:             0
 Timeout1:            0
LINK_INFO
 Current state:       up | Up to downs:         2  | Speed:           10000m
 Duplex:            full | Flowcontrol:       full


-- interface  c0a  (64 days, 22 hours, 11 minutes, 57 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:       44  | Total bytes:       192
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | UCast pkts:          0
 MCast pkts:          0  | BCast pkts:          0  | CRC errors:          0
 Bus overrun:         0  | Alignment errors:    0  | Long frames:         0
 Jabber:              0  | Pause frames:        0  | Runt frames:         0
 Jumbo frames:        0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        1  | Total bytes:        40
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 Queue overflows:     0  | No buffers:          0  | UCast pkts:          0
 MCast pkts:          0  | BCast pkts:          0  | Bus underruns:       0
 Pause frames:        0  | Jumbo frames:        0
LINK_INFO
 Current state: enabling | Up to downs:         0  | Speed:           10000k
 Duplex:            full | Flowcontrol:       none


-- interface  c0b  (64 days, 22 hours, 11 minutes, 57 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | UCast pkts:          0
 MCast pkts:          0  | BCast pkts:          0  | CRC errors:          0
 Bus overrun:         0  | Alignment errors:    0  | Long frames:         0
 Jabber:              0  | Pause frames:        0  | Runt frames:         0
 Jumbo frames:        0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        1  | Total bytes:        40
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 Queue overflows:     0  | No buffers:          0  | UCast pkts:          0
 MCast pkts:          0  | BCast pkts:          0  | Bus underruns:       0
 Pause frames:        0  | Jumbo frames:        0
LINK_INFO
 Current state: enabling | Up to downs:         0  | Speed:           10000k
 Duplex:            full | Flowcontrol:       none


-- interface  e0M  (64 days, 22 hours, 11 minutes, 57 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:          0
 Alignment errors:    0  | Runt frames:         0  | Long frames:         0
 Fragment:            0  | Jabber:              0  | Xon:                 0
 Xoff:                0  | Ring full:           0  | Jumbo:               0
 Jumbo error:         0  | Index error:         0  | Force wakeup:        0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 Queue overflows:     0  | No buffers:          0  | Single collision:    0
 Multi collisions:    0  | Late collisions:     0  | Max collisions:      0
 Deferred:            0  | Xon:                 0  | Xoff:                0
 MAC Internal:        0  | Jumbo:               0
LINK_INFO
 Current state:     down | Up to downs:         1  | Speed:           10000k
 Duplex:            full | Flowcontrol:       none


-- interface  e0P  (64 days, 22 hours, 11 minutes, 57 seconds) --

RECEIVE
 Frames/second:       3  | Bytes/second:      181  | Errors/minute:       0
 Discards/minute:     0  | Total frames:      886k | Total bytes:     85838k
 Total errors:        0  | Total discards:      0  | Multi/broadcast: 94995
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:          0
 Alignment errors:    0  | Runt frames:         0  | Long frames:         0
 Fragment:            0  | Jabber:              0  | Xon:                 0
 Xoff:                0  | Ring full:           0  | Jumbo:               0
 Jumbo error:         0  | Index error:         0  | Force wakeup:        0
TRANSMIT
 Frames/second:       3  | Bytes/second:      183  | Errors/minute:       0
 Discards/minute:     0  | Total frames:      795k | Total bytes:     62988k
 Total errors:        0  | Total discards:      0  | Multi/broadcast:    18
 Queue overflows:     0  | No buffers:          0  | Single collision:    0
 Multi collisions:    0  | Late collisions:     0  | Max collisions:      0
 Deferred:            0  | Xon:                 0  | Xoff:                0
 MAC Internal:        0  | Jumbo:               0
LINK_INFO
 Current state:       up | Up to downs:         0  | Speed:             100m
 Duplex:            full | Flowcontrol:       full


-- interface  lo  (64 days, 22 hours, 11 minutes, 52 seconds) --

RECEIVE
 Packets:          9323  | Bytes:             943k | Errors:              0
 Queue full:          0
TRANSMIT
 Packets:          9323  | Bytes:             943k | Errors:              0
 Collisions:          0


-- interface  vh  (64 days, 22 hours, 11 minutes, 52 seconds) --

RECEIVE
 Packets:             0  | Bytes:               0  | Errors:              0
 Queue full:          0
TRANSMIT
 Packets:             0  | Bytes:               0  | Errors:              0
 Collisions:          0


-- interface  losk  (64 days, 22 hours, 11 minutes, 52 seconds) --

RECEIVE
 Packets:             0  | Bytes:               0  | Errors:              0
 Queue full:          0
TRANSMIT
 Packets:          1281k | Bytes:            1237m | Errors:              0
 Collisions:          0


-- interface  my10g  (64 days, 22 hours, 11 minutes, 46 seconds) --

RECEIVE
 Total frames:    13515m | Frames/second:    1419  | Total bytes:      6974g
 Bytes/second:      254k | Multi/broadcast: 12817k
TRANSMIT
 Total frames:     6604m | Frames/second:    1107  | Total bytes:     24116g
 Bytes/second:     3301k | Multi/broadcast:  1876k

 

 

Re: Read performance is very poor in nfs share

Looks like e1a / e1b are the interfaces for you my10g interface.

 

Please send this info also:

 

ifgrp show -instance

net port show -port e1a|e1b -instance

 

If you want to turn of FlowControl on the 10G interface, you need to do in the physical interface, not the group:

net port modify -node xx -port e1a|e1b -flowcontrol-admin none (where xx is your node name)

 

--> this is mildly disruptive to set. This will disable at the netapp, you really should make sure it is disabled at the switch as well.

 

Looks like a bad cable. are you using fiber or copper?

You are getting lots of CRC errors on the receive (aka writes). 

Bad transciever? bad cable? time to troubleshoot.

maybe even open a case

Re: Read performance is very poor in nfs share

Hi Tmac,

 

ifgrp show command not found

 

Interface group(trunk) my10g
        e1b                 e1a        
  Pkts In   Pkts Out  Pkts In   Pkts Out
  14125m    6150m     783m      759m   
Sun Jan  8 21:15:45 PST [bheema:netif.linkUp:info]: Ethernet e1a: Link up. 
  5390      5276      1         1      
  6267      5398      4         2      
  13446     10525     5         1      
  5258      5102      16        2      
  4825      4681      18        2      
  5327      5197      11        1      
  5212      5089      7         2      
  5368      5252      3         2      
  6776      5924      6         1      
  8480      7262      12        2      
  4951      4820      21        2      
  4988      4855      10        1      
  4946      4825      5         2      
  5546      5348      8         2      
  5382      5251      6         1      
  5053      4911      13        2      
  4949      4796      17        2      
  5009      4875      12        1      
  4940      4815      10        2      
  5396      5211      7         2      
  6109      5897      2         1  

 

Checked cables we are using copper cable it is working.

 

Moved my10g (ifgrp) to e1b and e1a but same issue.

 

Disabled flowcontrol in both the interfaces e1a and e1b. Still not able to fix.

 

Attached my cabling diagram is that correct cabling ? WE have only one controller and one Disk shelf.

 

 

Re: Read performance is very poor in nfs share

Please send:

 

ifstat -a (make sure to include the e1a/e1b/my10g)

 

lets take a look at that.

Re: Read performance is very poor in nfs share

 

Hi Tmac,

complete output.

 

 

bheema> ifstat -a

-- interface  e0a  (68 days, 4 hours, 59 minutes, 53 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:          0
 Runt frames:         0  | Fragment:            0  | Long frames:         0
 Jabber:              0  | Alignment errors:    0  | Bus overruns:        0
 Queue overflows:     0  | Xon:                 0  | Xoff:                0
 Jumbo:               0  | Reset:               0  | Reset1:              0
 Reset2:              0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 Queue overflows:     0  | No buffers:          0  | Max collisions:      0
 Single collision:    0  | Multi collisions:    0  | Late collisions:     0
 Timeout:             0  | Xon:                 0  | Xoff:                0
 Jumbo:               0
LINK_INFO
 Current state:     down | Up to downs:         1  | Auto:               off
 Speed:           10000k | Duplex:            full | Flowcontrol:       none


-- interface  e0b  (68 days, 4 hours, 59 minutes, 53 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:          0
 Runt frames:         0  | Fragment:            0  | Long frames:         0
 Jabber:              0  | Alignment errors:    0  | Bus overruns:        0
 Queue overflows:     0  | Xon:                 0  | Xoff:                0
 Jumbo:               0  | Reset:               0  | Reset1:              0
 Reset2:              0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 Queue overflows:     0  | No buffers:          0  | Max collisions:      0
 Single collision:    0  | Multi collisions:    0  | Late collisions:     0
 Timeout:             0  | Xon:                 0  | Xoff:                0
 Jumbo:               0
LINK_INFO
 Current state:       up | Up to downs:         0  | Auto:                on
 Speed:            1000m | Duplex:            full | Flowcontrol:       full


-- interface  e1a  (68 days, 4 hours, 59 minutes, 53 seconds) --

RECEIVE
 Frames/second:       3  | Bytes/second:      150  | Errors/minute:       0
 Discards/minute:     0  | Total frames:      783m | Total bytes:      3058g
 Total errors:      921  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:        914
 Runt frames:         0  | Fragment:            1  | Long frames:         0
 Jabber:              6  | Bus overruns:        0  | Xon:                 0
 Xoff:                0  | Jumbo:               0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:      759m | Total bytes:     90053m
 Total errors:        0  | Total discards:      0  | Multi/broadcast:   981k
 Queue overflows:     0  | No buffers:          0  | Xon:                 0
 Xoff:                0  | Jumbo:               0  | TSO non-TCP drop:    0
 Split hdr drop:      0  | Pktlen:              0  | Timeout:             0
 Timeout1:            0
LINK_INFO
 Current state:       up | Up to downs:         4  | Speed:           10000m
 Duplex:            full | Flowcontrol:       none


-- interface  e1b  (68 days, 4 hours, 59 minutes, 53 seconds) --

RECEIVE
 Frames/second:     560  | Bytes/second:      101k | Errors/minute:       0
 Discards/minute:     0  | Total frames:    14141m | Total bytes:      4066g
 Total errors:      496  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:        491
 Runt frames:         0  | Fragment:            1  | Long frames:         0
 Jabber:              4  | Bus overruns:        0  | Xon:                 0
 Xoff:                0  | Jumbo:               0
TRANSMIT
 Frames/second:     529  | Bytes/second:      317k | Errors/minute:       0
 Discards/minute:     0  | Total frames:     6166m | Total bytes:     27943g
 Total errors:        0  | Total discards:      0  | Multi/broadcast:   988k
 Queue overflows:     0  | No buffers:          0  | Xon:                 0
 Xoff:                0  | Jumbo:               0  | TSO non-TCP drop:    0
 Split hdr drop:      0  | Pktlen:              0  | Timeout:             0
 Timeout1:            0
LINK_INFO
 Current state:       up | Up to downs:         5  | Speed:           10000m
 Duplex:            full | Flowcontrol:       none


-- interface  c0a  (68 days, 4 hours, 59 minutes, 53 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:       44  | Total bytes:       192
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | UCast pkts:          0
 MCast pkts:          0  | BCast pkts:          0  | CRC errors:          0
 Bus overrun:         0  | Alignment errors:    0  | Long frames:         0
 Jabber:              0  | Pause frames:        0  | Runt frames:         0
 Jumbo frames:        0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        1  | Total bytes:        40
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 Queue overflows:     0  | No buffers:          0  | UCast pkts:          0
 MCast pkts:          0  | BCast pkts:          0  | Bus underruns:       0
 Pause frames:        0  | Jumbo frames:        0
LINK_INFO
 Current state: enabling | Up to downs:         0  | Speed:           10000k
 Duplex:            full | Flowcontrol:       none


-- interface  c0b  (68 days, 4 hours, 59 minutes, 53 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | UCast pkts:          0
 MCast pkts:          0  | BCast pkts:          0  | CRC errors:          0
 Bus overrun:         0  | Alignment errors:    0  | Long frames:         0
 Jabber:              0  | Pause frames:        0  | Runt frames:         0
 Jumbo frames:        0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        1  | Total bytes:        40
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 Queue overflows:     0  | No buffers:          0  | UCast pkts:          0
 MCast pkts:          0  | BCast pkts:          0  | Bus underruns:       0
 Pause frames:        0  | Jumbo frames:        0
LINK_INFO
 Current state: enabling | Up to downs:         0  | Speed:           10000k
 Duplex:            full | Flowcontrol:       none


-- interface  e0M  (68 days, 4 hours, 59 minutes, 53 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:          0
 Alignment errors:    0  | Runt frames:         0  | Long frames:         0
 Fragment:            0  | Jabber:              0  | Xon:                 0
 Xoff:                0  | Ring full:           0  | Jumbo:               0
 Jumbo error:         0  | Index error:         0  | Force wakeup:        0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:        0  | Total bytes:         0
 Total errors:        0  | Total discards:      0  | Multi/broadcast:     0
 Queue overflows:     0  | No buffers:          0  | Single collision:    0
 Multi collisions:    0  | Late collisions:     0  | Max collisions:      0
 Deferred:            0  | Xon:                 0  | Xoff:                0
 MAC Internal:        0  | Jumbo:               0
LINK_INFO
 Current state:     down | Up to downs:         1  | Speed:           10000k
 Duplex:            full | Flowcontrol:       none


-- interface  e0P  (68 days, 4 hours, 59 minutes, 53 seconds) --

RECEIVE
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:      931k | Total bytes:     90175k
 Total errors:        0  | Total discards:      0  | Multi/broadcast: 99788
 No buffers:          0  | Non-primary u/c:     0  | Tag drop:            0
 Vlan tag drop:       0  | Vlan untag drop:     0  | Vlan forwards:       0
 Vlan broadcasts:     0  | Vlan unicasts:       0  | CRC errors:          0
 Alignment errors:    0  | Runt frames:         0  | Long frames:         0
 Fragment:            0  | Jabber:              0  | Xon:                 0
 Xoff:                0  | Ring full:           0  | Jumbo:               0
 Jumbo error:         0  | Index error:         0  | Force wakeup:        0
TRANSMIT
 Frames/second:       0  | Bytes/second:        0  | Errors/minute:       0
 Discards/minute:     0  | Total frames:      835k | Total bytes:     66171k
 Total errors:        0  | Total discards:      0  | Multi/broadcast:    18
 Queue overflows:     0  | No buffers:          0  | Single collision:    0
 Multi collisions:    0  | Late collisions:     0  | Max collisions:      0
 Deferred:            0  | Xon:                 0  | Xoff:                0
 MAC Internal:        0  | Jumbo:               0
LINK_INFO
 Current state:       up | Up to downs:         0  | Speed:             100m
 Duplex:            full | Flowcontrol:       full


-- interface  lo  (68 days, 4 hours, 59 minutes, 48 seconds) --

RECEIVE
 Packets:         20195  | Bytes:            1664k | Errors:              0
 Queue full:          0
TRANSMIT
 Packets:         20195  | Bytes:            1664k | Errors:              0
 Collisions:          0


-- interface  vh  (68 days, 4 hours, 59 minutes, 48 seconds) --

RECEIVE
 Packets:             0  | Bytes:               0  | Errors:              0
 Queue full:          0
TRANSMIT
 Packets:             0  | Bytes:               0  | Errors:              0
 Collisions:          0


-- interface  losk  (68 days, 4 hours, 59 minutes, 48 seconds) --

RECEIVE
 Packets:             0  | Bytes:               0  | Errors:              0
 Queue full:          0
TRANSMIT
 Packets:          1347k | Bytes:            1299m | Errors:              0
 Collisions:          0


-- interface  my10g  (68 days, 4 hours, 59 minutes, 42 seconds) --

RECEIVE
 Total frames:    14924m | Frames/second:     496  | Total bytes:      7125g
 Bytes/second:    87304  | Multi/broadcast: 13386k
TRANSMIT
 Total frames:     6925m | Frames/second:     467  | Total bytes:     28033g
 Bytes/second:      296k | Multi/broadcast:  1970k

 

Thanks,

 

Re: Read performance is very poor in nfs share

Try different cables or different ports...something.

 

You are seeing CRC errors on both e1a/e1b

 

This almost always indicats bad hardware someplace.

The cable, the port on the switch, the port on the netapp.

 

Time to bust out troubleshooting skills 101 and find the problem.

 

Are the cables Cisco or at least NetApp Certified?

may want to get a case opened to help out.