StorageTek L20 Seagate Drives not Compressing

[cstorm]

Gurus,

I have an STK L20 library with Seagate LTO-1 tape drives that is not compressing data. I used the NetBackup Wizard to discover the robot and tape drives during the configuration. The OS is HP-UX 11.11 and the devices: /dev/rmt/c2t0d0BESTnb /dev/rmt/c1t1d0BESTnb

lssf command shows:

stape card instance 1 SCSI target 1 SCSI LUN 0 berkeley no rewind best density available at address 10/0.1.0 /dev/rmt/c1t1d0BESTnb

Has anyone had this problem and what is the fix?

 

[Vela]

Storage Tek drives usually have a display on the drive with drive config options. You just need to get the operators manual for that drive then find the compress option on the drive itself and make sure it's set

or call Storage Tek
18005250369 and tell them the drive type and hopw to set it to compress

Ryan

 

[urosg]

Hi
You need to create new device files for tapes, just go through
this manual unix_comp_guide_stux200alw_en.pdf you will find it on

http://www.certance.com/

Br, Uros

 

[cstorm]

Thanks for the replies. StorageTek said that HP does not support the Seagate LTO-1 tape drives we have. They gave me the following command to create new device files with compression turned on. Example:

/sbin/mksf -d stape -H 0/7/0/1.0.0 -I 1 -c1 -n -u /dev/rmt/1cnb