[filmscanners] RE: Re:Computer size: RAID

["Laurie Solomon" <laurie@advancenet.net>]

>How, also, does RAID interact with PS's desire for partitions?
There should be no problems since you can partition a RAID array the same as
you can any single individual hard drive in a single or multiple drive
setup.  If the RAID is a mirrored arrangment, the paritions on the mirrored
drives in the RAID array will be identical to those on the main stripped
drives in the array.  Each partition on the non-mirrored postion of the RAID
array will be assigned a letter just as is the case with non-RAID drives and
their partitions.  Photoshop lets you assign scratch files by naming the
partition be its letter.  As for regular image data files the RAID works
vis-a-vis just like non-Raid drives and partitions as viewed externally by
Photoshop - only the internal workings of the Array itself are different and
not how the system and its programs interface with it.

> -----Original Message-----
> From: filmscanners_owner@halftone.co.uk
> [mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Whidbey Net
> Sent: Saturday, May 11, 2002 12:46 PM
> To: laurie@advancenet.net
> Subject: [filmscanners] RE: Re:Computer size: RAID
>
>
> Trying to figure out whether any
> increased performance would be worth the loss of data if one
> of the drives goes. On my current system I use the second
> disk for daily incremental back-ups (without full mirroring)
> which would be useless with the level 0 RAID. How, also,
> does RAID interact with PS's desire for partitions?
>
> As for any future large video editing project it might just
> be better to dedicate a couple of drives in RAID to the
> editing at that point.
>
> Comments on my reasoning on this (or lack of it)?
>
> --
> John Matturri
>
>
> For Photoshop, with that much RAM, SCSI striping would not be easy to
> justify. You just won't be going out to disk that much if you
> clear history
> regularly.
>
> For video, an external RAID array is the way to go. That takes care of
> cooling issues. The video system I use at work has two
> internal ATA drives,
> one for O/S and programs, one for archiving work off of the
> SCSI array. We
> have an external SCSI array with an 18GB logical drive for
> audio and a 36GB
> logical drive for video. Each logical drive is a pair of
> striped drives.
> This is the often recommended configuration for any video
> work above the
> amateur level as it separates the writes of audio and video, while
> maximizing the write rate of each.
>
> Denis
>
>
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