Not all LUN's are visible on HBA's

sanadmin_do

We use four Linux servers, with SLES 11 SP4, in our backup environment. Two servers are connected via FC with two E2700s (FW 8.40.30.03). The two other servers are connected via FC with two E2800 (FW 11.50). Our problem: Not all LUN's are recognized by the built-in HBA's. Despite restarting all the systems, the driver and the FW of the HBA's update remains at the problem.

Here's an example:

tsm61_cdata_002 (3600a098000af37c20000029a5a24aa4f) dm-66 NETAPP,INF-01-00
size=3.0T features='4 queue_if_no_path pg_init_retries 50 retain_attached_hw_handle' hwhandler='1 rdac' wp=rw
|-+- policy='service-time 0' prio=14 status=active
| |- 7:0:2:15 sdhi 133:128 active ready running
| `- 9:0:3:15 sdih 135:16  active ready running
`-+- policy='service-time 0' prio=9 status=enabled
  |- 7:0:3:15 sdgj 131:240 active ready running
  `- 9:0:2:15 sdel 128:208 active ready running

tsm61_data_001 (3600a098000af32d60000026c5a24ab38) dm-7 NETAPP,INF-01-00
size=3.0T features='4 queue_if_no_path pg_init_retries 50 retain_attached_hw_handle' hwhandler='1 rdac' wp=rw
|-+- policy='service-time 0' prio=14 status=active
| |- 7:0:0:15 sdbo 68:32   active ready running
| `- 9:0:0:15 sdq  65:0    active ready running
`-+- policy='service-time 0' prio=9 status=enabled
  `- 7:0:1:15 sdcn 69:176  active ready running

tsm71_data_010 (3600a098000af37c2000002b35a24ac3c) dm-70 NETAPP,INF-01-00
size=3.0T features='4 queue_if_no_path pg_init_retries 50 retain_attached_hw_handle' hwhandler='1 rdac' wp=rw
|-+- policy='service-time 0' prio=14 status=active
| |- 9:0:3:12 sdie 134:224 active ready running
| `- 7:0:2:12 sdhf 133:80  active ready running
`-+- policy='service-time 0' prio=9 status=enabled
  |- 7:0:3:12 sdgg 131:192 active ready running
  `- 9:0:2:12 sdei 128:160 active ready running

tsm71_cdata_005 (3600a098000af32d60000027b5a24ad7c) dm-20 NETAPP,INF-01-00
size=3.0T features='4 queue_if_no_path pg_init_retries 50 retain_attached_hw_handle' hwhandler='1 rdac' wp=rw
|-+- policy='service-time 0' prio=14 status=active
| |- 7:0:0:5  sdbe 67:128  active ready running
| `- 9:0:0:5  sdg  8:96    active ready running
`-+- policy='service-time 0' prio=9 status=enabled
  `- 7:0:1:5  sdcd 69:16   active ready running

Does anyone have any idea where the mistake could be?

sanadmin_do

The issue is solved. There was a configuration error in our multipath.conf: A regular expression for matching the first SCSI-Device "sda" was also matching the devices "sdaa", "sdab", "sdac" and so on.