Hello,

We want to migrate our tsm 5.3.6 to new hardware with 5.5.3 installed.
I have SCSI tape library 3573 on old server (5.3.6)which we use as copy pool 
only. We keep our primary pool on disks.
I installed everything on new server and I physically moved tape library to new 
server. When I started restore I received error. I ran trace and I got:

15:05:51.313 [40][psntpop.c][1668][]:PvrPsTape GET_TAPE_DRIVE_INFORMATION, 
maxblocksize 65536
15:05:51.313 [40][pvrntp.c][1163][]:Opening NTP Volume FXK307L4 blocksize=0, 
Drive DRIVE2 (mt4.0.0.4) maxblocksize=65536.
15:05:51.313 [40][output.c][6385][]:ANR8939E The adapter for tape drive DRIVE2 
(mt4.0.0.4) cannot handle  the block size needed to use the volume

So new server is using 64K blocksize.


I also ran trace on exiting, old, production server with tape library 
connected. I just ran quick copy diskpool to copy pool.
Trace:
15:52:24.734 [26][psntpop.c][1644]: PvrPsTape GET_TAPE_DRIVE_INFORMATION, 
maxblocksize 262144
15:52:24.734 [26][pvrntp.c][1146]: Opening NTP Volume FXK313L4 blocksize=0, 
Drive MT4.0.0.2 (mt4.0.0.2) maxblocksize=262144.
15:52:24.734 [26][pvrntp.c][1194]: Using the NoCopy method (True) with RS = 48 
and BS = 262144, PVR's blockSize = 262144

Old server is using 256K blocksize to write to tape.

I have case open with IBM TSM tech support. They said it is hardware (SCSI 
Adapter). I have IBM Adaptec 29320ALP (which is PCI-X card) on old server and 
same card 29320LPE (which is PCI-e express) on new server. I didn't call ibm 
hardware support because they are just dealing with replacing parts. I opened 
case with adaptec and ask them how to change blocksize; they said it should 
work if you didn't change registry settings.

I don't understand why there is no clear answer how to change blocksize on scsi 
adapters.

Any help appreciated.

Regards,


Joe Crnjanski
Infinity Network Solutions Inc.
Phone: 416-235-0931 x226
Fax:       416-235-0265
Web:    www.infinitynetwork.com