Copy from SAN to SAN

[sbttn223]

Hello all,

If I have 2 tsm (5.4) environments (in AIX) that are supposed to have the same data. I was wondering, what would be the best way to copy data (stgpools, db, and logs) from one SAN1 to SAN2.

So that TSMserver2 have the same data as TSMserver1 has.


Thanks,

 

[cwilloug]

What is your long term goal with this? Are you planning on getting rid of TSMserver1?

I've just done the same thing, but I'm moving from a local disk to a SAN, and a new tape library - so my storage looks like this....

Storage Device Estimated Pct Pct High Low Next Stora-
Pool Name Class Name Capacity Util Migr Mig Mig ge Pool
Pct Pct
----------- ---------- ---------- ----- ----- ---- --- -----------
15DAYCOPY ATLE05DEV 112,669,266 G 0.0
15DAYCOPY3592 ATL3592DEV 61,133,472 G 0.0
15DAYTAPE ATLE05DEV 149,998,500 G 0.0 0.0 90 70
15DAYTAPE3592 ATL3592DEV 0.0 M 0.0 0.0 90 70 15DAYTAPE
ATL3592 ATL3592DEV 8,860,137G 0.0 0.3 90 70 ATLE05
ATL3592NOCOL ATL3592DEV 0.0 M 0.0 0.0 90 70 ATLNOCOLL
ATLE05 ATLE05DEV 143,245,787 G 0.0 0.2 90 70
ATLNOCOLL ATLE05DEV 132,972,360 G 0.0 0.0 90 70
BACKUP15DAYSAN DISK 102 G 10.7 10.7 80 10 15DAYTAPE
BACKUPPOOLSAN DISK 154 G 7.9 7.9 70 20 ATLNOCOLL
COPY3592 ATL3592DEV 75,827,847G 0.1
COPYE05 ATLE05DEV 129,465,119 G 0.0
DIRSP DISK 8 G 17.9 0.0 90 10 DIRSPSAN
DIRSP3592 ATL3592DEV 0.0 M 0.0 0.0 90 70 DIRSPE05
DIRSPE05 ATLE05DEV 149,998,5 00 G 0.0 0.0 90 70
DIRSPSAN DISK 15 G 9.2 2.7 90 70 DIRSPE05
DISK3592SAN DISK 2,355 G 30.9 29.9 75 30 ATLE05


if the stg group has a 3592 in it, its the old tape library - you can see that I have the ATL3592 tape pool going to the next pool ATLE05 - the new tape library for migration to the new tape library.
My DIRSP disk pool (old disk) is going to DIRSPSAN (new SAN disk space).

My plan is to get completely off of local disk, which I have done now - and migrate all the old tapes to the new tape library, I'm almost done with that. It has taken me about 6 weeks to migrate 4 primary tape pools, around 800 tapes, to the new library. (You can not migrate copy pools)

I hope this helps.

 

[sbttn223]

Hi, thanks for the quick reply.

It's not for migration, I still want to keep TSMserver1 and SAN1.

The two environments are supposed to be the same (replicated via IBM Content Manager).

I want to bring SAN2 closer to the amount of data that SAN1 has.

 

[cwilloug]

Ok - I'm not familiar with IBM Content manager -

Can you have - -
SAN1 primary pool1 - backup to SAN1 copy pool1
SAN1 primary pool1 - backup to SAN2 copy pool1

I think that could take some time, depending on the size of your disk/tape pools.

I'm sure there is something faster / better out there.

 

[sbttn223]

Unfortunately, there really isn't the storage space for that (to make copy pools for both).

I've been trying to mirror on the OS level (mirrorvg and/or mklvcopy) however, I haven't had any success bringing the mirrored copy the second server... TSMserver2.

 

[heada]

TSM1 on SAN1 and TSM2 on SAN2. TSM1 needs access to SAN2. Allocate a LUN from SAN2 onto TSM1. Create a new VG on that LUN. Perform a LV copy* (cplv -Y'{prefix}' -v'{VG for copy}' {source LV}) Varyoff the VG and export it. Remove the LUN from TSM1. Allocate the LUN to TSM2 and import the VG. You now have a complete copy of the data from TSM1.

* Works on AIX 5.3 TL07, not sure what level it was introduced.

-Aaron

 

[sbttn223]

Thanks heada,

I tried it a couple of times, sometimes, after importing the vg's on the second server the jfs2log lv's were somehow changed to jfs lv's. But now they appear to have imported correctly.