On Tue, Dec 09, 2003 at 09:53:59AM -0500, Brian Cuttler wrote: > Hello, > > Hate to say but I'm running (probably) one of the odder configurations. > > We run two amanda servers concurrently on a single system (Solaris 9, > Amanda 2.4.4). We are able to do this because one of the servers > backups up only "local" ie UFS partitions and the other only "remote" > clients (clients not of localhost). We are writing to two separate > jukeboxes (each with a single LTO tape drive). > > I have started seeing that the remote backups fail, the following > is the typical message > > panther /data lev 1 FAILED [no more holding disk space] > > I take it to mean that the local backups, running much more quickly > (fast processor, no network) than remote backups and _shareing the > same physical /amanda/work partition_ are filling up the amanda/work > area and the remote backups having no place to write are failing. > > Is this the case ? Why don't the (remote) dumps simply delay until > spool clears - or perhaps put one or two into degraded mode, allowing > the other amanda server to write its own drive and clear the spool > and allowing the remote backups to resume use of spool. > > I don't really want to limit the amount of spool available to either > server, I suppose I could probably stagger the two servers in cron but > not certain which way to skew them. > > Ideal situation, single amanda server - write completed dumps to > alternate jukeboxes, output any of n-dumps to first available or > best fit drive. Sort of a round-robin on the jukeboxes. Doable ? >
I did not consider this carefully, quick off top of my head possibilities. Local config, set all DLEs to same spindle number. That will limit them to max one dump at a time. At the same time, limit the holding disk to accomodate the two largest local DLEs. That will allow one done DLE taping with one more dumping; but will limit the holding disk usage. You might then be able to leave the remote config unchanged. Another possibility is to consider the two LTO drives a "changer" using the chg-multi script designed for multiple drives, not changers. Then use a single script for all DLE's and runtapes of 2. -- Jon H. LaBadie [EMAIL PROTECTED] JG Computing 4455 Province Line Road (609) 252-0159 Princeton, NJ 08540-4322 (609) 683-7220 (fax)
