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Re: [Bacula-users] Tape compression not working LTO-5
2011-01-14 15:38:48
My stinit.def is given below. I don't know if that is correct or not since I never found any settings from HP drive docs
# HP Ultrium 5-SCSI
manufacturer=HP model= "Ultrium 5-SCSI" {
scsi2logical=1
#can-bsr=1
#auto-lock=0
#two-fms=0
drive-buffering
buffering=1
read-ahead=1
async-writes=1
#can-partitions=0
#fast-eom=1
density=0x58
blocksize=0
mode1 compression=1
mode2 compression=1
mode3 compression=1
mode4 compression=1
}
If anybody let me know if these settings are correct then that will be very helpful.
Under /sys/class/scsi_tape/nst0 I have these values default_blksize=0, default_compression=1, default_density=0x58
Arunav.
> Date: Fri, 14 Jan 2011 12:46:11 -0500
> Subject: Re: [Bacula-users] Tape compression not working LTO-5
> From: drescherjm AT gmail DOT com
> To: jarodriguez AT cgi DOT es
> CC: dibun AT hotmail DOT com; bacula-users AT lists.sourceforge DOT net
>
> > That may affect the use encryption or compression software prior?,
> > there should be independent of the hardware compression?.
> > I have the same problem with one LTO-3.
> >
>
> The reason I asked is that if you used software compression or
> encryption and sent that data to the hardware compression this data
> will most likely not be compressible a second time so the hardware
> compression would have most likely stored the data instead of
> compressing again.
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