Sorry if I was no clear enough :-) My setup : 1 amanda server with virtual tape (hard disk) 20 remote clients
My problems : my server is overloaded during the backup. I suppose that I can play with those parameters to reduce the load : compress parameter should be client and not on amanda server reduce inparallel (now 10) reduce maxdumps (now 4) thanks! Ram "TK" Krishnamurthy wrote: > Jon > My comment was for backing upto disks. And I mis-read the original > post that he was backing to tape. You are correct that holding disk is > key for dumping multiple dle's. > > > tk > > Jon LaBadie wrote: >> On Tue, Mar 07, 2006 at 12:07:25PM -0800, Ram TK Krishnamurthy wrote: >> >>> You generally do not use holding disks when backing up to disks. >>> >>> tk >>> >>> FM wrote: >>> >>>> Hello, >>>> >>>> Do I need a holdingdisk when I using hard drive backup ? >>>> >>>> I have a lots of iowait because of the copy from holding disk to >>>> virtual >>>> tape even if the holding disk is on internal SCSI drives and tapes are >>>> on an extrenal SCSI array (using sata drives) >> >> >> >> Why not Ram? Without a holding disk only one client DLE can >> be dumped at a time. The holding disk is to allow multiple >> DLEs to collect simultaneously, only transfered to "tape" >> when complete. Without a holding disk the DLE must be >> dumped "directly to tape" eliminating all parallelism. >> >
