Network and Storage Protocols
Network and Storage Protocols
I have a DS14mk2AT with 1TB SATA drives attached as aggr1 to a single controller FAS2020. I want to move to that shelf, all of the disks the aggr and the data to a dual controller FAS2040. Is there a procedure to do this?
May be this will help you...
To physically move a volume, complete the following steps.
-DEV
cool!
is it ever possible for the physical disks to be associated with another volume as well?
What kind of association ? Request you to elaborate
I'm just curious if data from more then 1 volume can exist on a single disk?
and if it can, what happens when you start pulling out the physical disks? Maybe you're forced to move it as well?
Yes that volume would also be forced to move with disks.For saving associated volumes, we need to have a copy of associated volume within the filler, to avoid such forceful physical migration situations.
I've been asked for more details;
FAS2020 is single controller
Data OnTap 7.2.4L1
12 internal 300GB drives - aggr0 is here
one expansion shelf - DS14mk2AT with 4 1TB drives - aggr1 is here
all data in aggr1 (DS14) is CIFS.
FAS2040 dual controller
Data OnTap 7.3.6
12 internal 600GB drives - aggr0 (cn1) and aggr 0 (cn2)
I want to move the DS14mk2AT with 4 1TB drives with the volumes, aggr1 and all data. This aggr is NOT shared with the other aggr on the FAS2020, so all volumes and data in that aggr are on DS14 and 1TB drives. So I want to move the shelf with the drives, not just the drives themselves.
I am hoping it is as easy as offline all volumes in the DS14 aggr.
Off Line aggr on DS14
Halt 2020
Physically move DS14 cables from FAS2020 to FAS2040.
Bring up new DS14 storage on FAS2040
Hopefully all data will be in place and all CIFS ACL info will be consistent.
Verify all CIFS data can be seen/shared with all existing hosts.
The 2020 and 2040 have a SnapMirror relationship today, and the CIFS data is on the 2040, but on aggr0 on the 600GB drives. It needs to be on the 1TB drives. So hopefully by moving the shelf and the 1TB drives, the data will be intact and moved to the 2040.
Does this make sense. Does this sound workable and reasonable?
2020 : halt
2040 : cf disable then halt both nodes
plug ds14 shelf into 2040
SERIAL or RLM : boot 2040 into maintenance mode (second CTRL-C at boot and choose option 5 ). At question "continue with boot" press Y
At maintenance mode prompt :
"disk show -v" (to check that all 1Tb disks are present)
"disk reassign" to change old disk serial by new one - serial number of your controller is available with "sysconfig -v" Syntax:
disk reassign {-o old_name | -s old_sysid} [-n new_name] [-d new_sysid]
halt
at loader prompt : boot_ontap
once booted :
check everything is there "aggr status" "vol status" "sysconfig -r" then re-enable cluster : "cf enable"
done