johansen
ADSM.ORG Member
hi all,
we have defined a POC in our company and decided to choose a DD880 for the "best" solution for us to use it with TSM.
after one month of fighting we are really lost and are near to send the box back to the vendor because it's not working in our productive environment.
We have following setup:
IBM p560
5 LPARs, AIX6100-06
Atape 12.1.5.0
TSM Server version 5.5.5.0
virtualized fiberchannel adapters with NPIV (18 fcs-devices per lpa)
3584 tape library with 30x rmt (lto3) devices
library manager communicating with smc0 (with alt-pathing enabled)
VTL emulation STK L180
VTL devices LTO3
Once we received the DD we have set up pools etc within the DD and connected it to the library manager and a library client.
library path: /dev/lb0
drives: /dev/rmt30 - /dev/rmt59
We have defined all lib-paths and drives in TSM (using NPIV) and received tons of errors and already after checkin of the scratch tapes from the VTL we received errors:
after that we got 2 physical dual port FC adapter and installed them in the p560 and assigned them DIRECTLY (without NPIV) to the LPARs. One to the libr manager and one to the libr client.
We could use the VTL with multiple mount points nearly up to 3 hrs, but then suddently we received error messages again.
The drives and lb0 device(s) are available in AIX with lbtest f.e.
The "special" situation starts now:
- we have opened a ticket at IBM support and in the beginning they tried to help but suddenly this changed.
- the EMC DD is in support since 5.4.1 with IBM TSM
http://www-01.ibm.com/software/sysm...vices_for_AIXHPSUNWIN.html#LTO Tape Libraries
- BUT the certification of the L180 emulation is NOT supported anymore because the certification of DataDomain VTL expired!!
- so IBM cannot help us anymore and EMC actually tries to get the VTL supported again.
- On DD side there is a TS3200 emulation available with we should used (IBM told us to test) but this emulation is not supported from EMC (because it wasn't made for TSM).
this is the quote from IBM:
EMC told us that many customers are using the DD together with TSM with L180 emulation without problems.
Does anyone of you had similar problems with with DD and TSM? Which emulation did you use?
Thanks a lot for you help!
we have defined a POC in our company and decided to choose a DD880 for the "best" solution for us to use it with TSM.
after one month of fighting we are really lost and are near to send the box back to the vendor because it's not working in our productive environment.
We have following setup:
IBM p560
5 LPARs, AIX6100-06
Atape 12.1.5.0
TSM Server version 5.5.5.0
virtualized fiberchannel adapters with NPIV (18 fcs-devices per lpa)
3584 tape library with 30x rmt (lto3) devices
library manager communicating with smc0 (with alt-pathing enabled)
VTL emulation STK L180
VTL devices LTO3
Once we received the DD we have set up pools etc within the DD and connected it to the library manager and a library client.
library path: /dev/lb0
drives: /dev/rmt30 - /dev/rmt59
We have defined all lib-paths and drives in TSM (using NPIV) and received tons of errors and already after checkin of the scratch tapes from the VTL we received errors:
Code:
[SIZE=3][FONT=Times New Roman]ANR8840E Unable to open device /dev/lb0 with file handle 22.[/FONT][/SIZE]
after that we got 2 physical dual port FC adapter and installed them in the p560 and assigned them DIRECTLY (without NPIV) to the LPARs. One to the libr manager and one to the libr client.
We could use the VTL with multiple mount points nearly up to 3 hrs, but then suddently we received error messages again.
Code:
ANR8311E An I/O error occurred while accessing drive RMT36
(/dev/rmt36) for SETMODE operation, errno = 79, rc = 1.
(SESSION: 2116)
ANR8311E An I/O error occurred while accessing drive RMT49
(/dev/rmt49) for REW operation, errno = 79, rc = 1.
(SESSION: 2118)
ANR8311E An I/O error occurred while accessing drive RMT36
(/dev/rmt36) for OFFL operation, errno = 79, rc = 1.
(SESSION: 2116)
ANR8311E An I/O error occurred while accessing drive RMT49
(/dev/rmt49) for OFFL operation, errno = 79, rc = 1.
(SESSION: 2118)
ANR8840E Unable to open device /dev/lb0 with file handle
78. (SESSION: 2122)
ANR8945W Scratch volume mount failed F00022. (SESSION:
2122)
ANR8381E LTO volume F00022 could not be mounted in drive
RMT57 (/dev/rmt57). (SESSION: 2122)
ANR9790W Request to mount volume *SCRATCH* for library
client TSM failed. (SESSION: 2122)
The drives and lb0 device(s) are available in AIX with lbtest f.e.
The "special" situation starts now:
- we have opened a ticket at IBM support and in the beginning they tried to help but suddenly this changed.
- the EMC DD is in support since 5.4.1 with IBM TSM
http://www-01.ibm.com/software/sysm...vices_for_AIXHPSUNWIN.html#LTO Tape Libraries
- BUT the certification of the L180 emulation is NOT supported anymore because the certification of DataDomain VTL expired!!
- so IBM cannot help us anymore and EMC actually tries to get the VTL supported again.
- On DD side there is a TS3200 emulation available with we should used (IBM told us to test) but this emulation is not supported from EMC (because it wasn't made for TSM).
this is the quote from IBM:
I summarized the support for Data Domain VTL from EMC:
The certification expired.
The VTL was tested with IBM LTO-3 so only IBM LTO-3 was supported.
The STK L180 emulation is not supported.
The customer should work with EMC and get the VTL supported again before using it with TSM to get L180 certified.
Since IBM LTO-3 is quite old, EMC might want to get recertified with IBM LTO-4.
EMC told us that many customers are using the DD together with TSM with L180 emulation without problems.
Does anyone of you had similar problems with with DD and TSM? Which emulation did you use?
Thanks a lot for you help!