Linux kernel 2.6 is not supported yet by Networker as server or storage
node, mainly due to changes incorporated in the new kernel as regarding
to devices handling.
Networker 7.2.1 is only supported as a client on Linux kernel 2.6.
Networker 7.3, probably due before year end is supposed to provide the
server and storage node support to Linux kernel 2.6 implementations.
Itzik

> -----Original Message-----
> From: Legato NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Oscar Olsson
> Sent: Wednesday, November 30, 2005 19:53
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: [Networker] Reading/writing SAIT1 tapes on Linux 
> that were written by solaris?
> 
> We currently have a 7.2.1 backup server running on Solaris, 
> with SAIT-1 drives. And now we're adding a 7.2.1 storage 
> node, connected to the same library. The storage node is 
> running SuSE EL9 SP2, with kernel 2.6 (64-bit AMD). The 
> drives are connected via a QLogic QLA2340. We are using the 
> HBA driver that was installed per default by SuSE. The drives 
> show up at boot, and are accessable through /dev/st0 or 
> /dev/nst0 and so on. However, when mounting a tape in the 
> drive, it says that it can't read the tape label!
> 
> This is what is seen in the logs:
> 
> With dmesg (also in /var/log/messages):
> 
> st0: Incorrect block size.
> st0: Incorrect block size.
> 
> And from daemon.log on the main solaris backup server:
> 
> 
> 11/30/05 18:01:59 nsrd: rd=sn01:/dev/nst0 Verify label 
> operation in progress
> 11/30/05 18:02:56 nsrd: media warning: rd=sn01:/dev/nst0 
> reading: Success
> 11/30/05 18:03:15 nsrd: media warning: rd=sn01:/dev/nst0 
> reading: no tape label found
> 11/30/05 18:03:16 nsrd: rd=sn01:/dev/nst0 Eject operation in progress
> 11/30/05 18:04:13 nsrd: Jukebox 'Osato' failed: expected 
> volume '006950S1' 
> got 'NULL'.
> 
> 
> At first, I was thinking that it has something to do with the 
> block size. 
> So I mounted a volume on the Solaris server in order to check 
> what block size that volume had. It was 64K, according to the 
> networker admin GUI. So I configured the SAIT-1 drive on the 
> storage node to use 64K block size, but I still had the same 
> problem. Then I installed the mt_st package, so I could use 
> stinit instead. I tried setting the block size to 0 and to 
> 65535, and I got the same error as above. One interesting 
> thing is that mt always reports the block size as 512 bytes, 
> like this:
> 
> 
> sn01:/var/log # mt -f /dev/nst0 status
> drive type = Generic SCSI-2 tape
> drive status = 1073742336
> sense key error = 0
> residue count = 0
> file number = 0
> block number = 0
> Tape block size 512 bytes. Density code 0x40 (unknown).
> Soft error count since last status=0
> General status bits on (41010000):
>   BOT ONLINE IM_REP_ENs
> 
> The following is what I have in the st.conf on the Solaris box:
> 
> tape-config-list=
> "SONY    SDZ-100", "Sony Super-AIT1", "SONY_SAIT";
> SONY_SAIT       =       1, 0x36, 0, 0x19639, 4, 0x00, 0x00, 
> 0x00, 0x00,0;
> 
> And this is what I *THINK* should be in stinit.def (I made it 
> myself looking at EMC/Legatos AIT-3 entry from ftp-legato.com):
> 
> # SONY SAIT-1
> manufacturer=SONY model = "SDZ-100" {
> can-bsr scsi2logical drive-buffering
> timeout=800
> long-timeout=14400
> mode1 blocksize=0 density=0x00
> }
> 
> NOTE that I have tried doing this without stinit installed as well.
> 
> So all this leads me to believe that it might not be related 
> to the block size after all, although it does complain about 
> it. Any clues of why this could be? Bad HBA driver? All help 
> is ofcourse appreciated! :)
> 
> //Oscar
> 
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