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- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
- Path: sparky!uunet!gatech!paladin.american.edu!auvm!VCCSCENT.BITNET!SOMITCW
- Message-ID: <SFS-L%92091116233715@SEARN.SUNET.SE>
- Newsgroups: bit.listserv.sfs-l
- Date: Fri, 11 Sep 1992 09:55:09 EST
- Sender: "VM Shared File System (SFS) forum" <SFS-L@SEARN.BITNET>
- From: SOMITCW@VCCSCENT.BITNET
- Subject: Performance/config info
- Lines: 25
-
- On Fri, 11 Sep 1992 09:19:23 EDT, HOLTZMAN@SJUVM said:
- >Hi. I need to know some guidelines for configuring our SFS stuff.
- >What is the optimal arrangement of minidisks for an SFS server?
- >Should I have a bunch of disks spread across serveral packs? - - -
-
- To get the best performance, put each piece on a dedicated
- volume, each on dedicated string of disk, each on a dedicated
- channel and wait for the first head crash anywhere on any volume
- to wipe out your SFS system.
- I hope everyone realizes that the above is ridiculous.
-
- For the best data integrity, put all pieces of an SFS service
- machine on a single volume. This also helps recovery.
-
- To combine the best performance and the best integrity, place
- the SFS server mini-disk on as few volumes as possible and put
- high used areas either adjacent on a volume or on separate
- volumes. A good layout is starting at the center of a volume,
- put the 191 disk, then put the control disk at the next higher
- cylinder number, then a log, then the other log, then catalog,
- then data. This assumes that the low addresses of the data are
- the heaviest used. If you must put non-SFS high used areas on
- the same volume, the 191, control, and both logs could be moved
- to be after the data ( higher cylinders ) and the non-SFS high
- used data put in the center of the volume.
-