doelz@urz.unibas.ch (06/29/90)
Release 3.3. supposedly supports 'striping' of disks on efs systems.
I'd like to stripe my swap space (/debug) which is of type 'rawdata'
in the fx. Any pointers welcome.
- Reinhard
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************************************************************************archer@elysium.esd.sgi.com (Archer Sully) (06/29/90)
In article <1990Jun29.083658.807@urz.unibas.ch> doelz@urz.unibas.ch writes: >Release 3.3. supposedly supports 'striping' of disks on efs systems. >I'd like to stripe my swap space (/debug) which is of type 'rawdata' >in the fx. Any pointers welcome. striping the swap space is unnecessary, as the system already handles multiple swap devices that can even live on different controllers. See swap(1m). -- Archer Sully | Ask not what you can do for you country, (archer@esd.sgi.com) | But what your country's been doing to you. | -- The Avengers
jwag@moose.asd.sgi.com (Chris Wagner) (06/29/90)
Swap space, while still on raw partitions in 3.3 have always been interleaved across as many swap devices as a re configured. So if you have 4 swap areas, swap will be interleaved on a per request basis across all 4 devices. CHris Wagner
ktureski@alias.uucp (Kevin Tureski) (07/01/90)
In article <9737@odin.corp.sgi.com> archer@elysium.esd.sgi.com (Archer Sully) writes: > >striping the swap space is unnecessary, as the system already handles >multiple swap devices that can even live on different controllers. >See swap(1m). A request from ages ago is whether you can (or will be able to in some future release) swap on devices on *another machine's* controller ... I personally don't care if it's as slow as molasses, since it may be the ONLY way I can run a mega-process. Consider the following situation: I've got a machine with a 2-drive controller with, say, a pair of 780's. One has root, just enough for /usr to be comfortable, and the rest (500Mb) dedicated to swap. The other disk is configured as one large filesystem full of user files. It's chock full of everything that's required to run this large process. The process requires 600Mb swap. I've only got 500. And can't get any more, no way, no how on that machine without getting a 4-drive controller and stealing a disk off of another machine. But if I could just umount that other "extra" disk for a while and dedicate it's swap space to that other machine, I'd get the job done without the pain and anguish that I've personally gone through in the past. Kevin Tureski Director, Systems Integration Alias Research Inc. ktureski%alias@csri.utoronto.ca ktureski@alias.uucp