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Re: holding disk when using HD backup ?
2006-03-07 15:37:40
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.
--
Ram "TK" Krishnamurthy
Amanda Wiki: http://wiki.zmanda.com
Amanda Forums:http://forums.zmanda.com
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