Author: Michael Leone <Michael.Leone AT PHA.PHILA DOT GOV>
Date: Thu, 22 Mar 2012 08:26:20 -0400
I have an LTO-4 autochanger that doesn't seem to be doing compression (or not doing it very well). I realize that it's impossible to get the vendors claimed "2 to 1" compression ratios, but I should
Author: Michael Leone <Michael.Leone AT PHA.PHILA DOT GOV>
Date: Thu, 22 Mar 2012 08:37:55 -0400
I take that back - on the web interface of the single drive in the autoloader, I do see " Data Compression Yes So I guess that answers whether the drive *can* do it. Guess I need to see that it actu
Author: bingo <networker-forum AT BACKUPCENTRAL DOT COM>
Date: Thu, 22 Mar 2012 08:21:32 -0700
You usually define that via your driver's choice (especially on UNIX/Linux). The SCSI INQUIRE command will in fact tell you that. However, you usually do not get the result in binary/hex form so that
Author: bingo <networker-forum AT BACKUPCENTRAL DOT COM>
Date: Thu, 22 Mar 2012 09:20:22 -0700
I just forgot that INQUIRE is not the correct SCSI command. These are the MODE parameter (MODE SENSE & MODE SELECT). For NW cdi_get_status is the right command. Here is the example (of course you mus