[rescue] Block size and the single DD
jdboyd at jdboyd.net
Wed Feb 11 09:47:05 CST 2004
On Wed, Feb 11, 2004 at 10:31:11AM -0500, Sheldon T. Hall wrote:
> Has anyone some suggestions on what "rescue-compatible" hardware might be
> fast enough? My SGI Challenge L with 2xR10k/195 instead of 4xR4k/150? An
> Indigo^2 R10k/195? Sun Ultra 1 170e?
What is the actual bandwidth your DLT needs? Does it need 20mbytes/sec,
or what? The DLT2000XT someone else mentioned using on an Octane
appears to only need 1.25 megabytes uncompressed or 2.5megs/sec
compressed to keep it happy. That should be a cinch for an Octane to
provide for any reasonable 9 gig disk. I don't know what his problem
is. Other DLTs I'm looking at can require up to 36megs/second.
Either of you SGIs should have no trouble I would think. Then again,
I'm a bit surprised that your Classic can't do it since you've added a
second wide SCSI card (is it fast wide, or just wide? Since the
internal disks are plain narrow SCSI it probably doesn't matter I guess).
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