[1312] in linux-scsi channel archive
Re: Auto Loader tape drive
daemon@ATHENA.MIT.EDU (Jon Lewis)
Sun Jan 26 02:29:16 1997
Date: Sun, 26 Jan 1997 02:27:32 -0500 (EST)
From: Jon Lewis <jlewis@inorganic5.fdt.net>
To: Dan Merillat <Dan@Merillat.org>
cc: Linux SCSI List <linux-scsi@vger.rutgers.edu>
In-Reply-To: <Pine.LNX.3.95.970126020628.1203D-100000@chaos.ao.net>
On Sun, 26 Jan 1997, Dan Merillat wrote:
> As a tape drive, it works no problem... But what mt commands can I use
> to get it to swap tapes? The idea is to use the 48 raw gig on a news server
> so I don't have to wipe it every time I change the size of the raid0
> filesystem. So, I'm looking at a (tar/cpio/whatever) solution to start
> at tape 1 and go on. Programming is possible but I figured someone has
> done it already.
Can you just use mt -f /dev/st0 offl to cycle through the tapes in the
magazine?
BTW...backing up your big md spool to DAT will take forever. Even if you
get 20mb/min...possible if you have a decent system and kill innd before
the backup is begun, you can plan to spend around 10 hours backing up and
restoring a 6gb spool. Since you use MD, lets guess you have 12gb of
spool...now you're going to spend 20 hours upgrading...not including the
physical upgrade downtime.
I'd say backup any local news groups and let the rest go...and plan not to
upgrade the spool more than once a year or so...or hope for better
ext2fs/md tools to allow growth of md partitions by the time you need
them.
------------------------------------------------------------------
Jon Lewis <jlewis@fdt.net> | Unsolicited commercial e-mail will
Network Administrator | be proof-read for $199/hr.
________Finger jlewis@inorganic5.fdt.net for PGP public key_______
