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- From: rodney@cssc-syd.tansu.com.au (Rodney Campbell)
- Newsgroups: comp.sys.sun.hardware
- Subject: Re: Prestoserv?
- Message-ID: <1992Aug14.042821.18360@cssc-syd.tansu.com.au>
- Date: 14 Aug 92 04:28:21 GMT
- References: <1992Aug4.104143.136@csc.canterbury.ac.nz>
- Organization: Customised Software Solutions Centres, AOTC
- Lines: 37
-
- adm@einstein.canterbury.ac.nz (Andrew McGregor) writes:
-
- >We saw this gadget mentioned in sun's pricelist.
- >some questions:
-
- We have been using the Prestoserv SBus card and software for about 9
- months now on a few server machines.
-
- >I gather it speeds up performance for server type activities;
- >by how much? Exactly which activities?
-
- It basically speeds up NFS writes by caching incoming writes over NFS and
- then writing them out to disk when there is time. You put the card and
- software on the server and the NFS clients don't know the difference.
- It does make a difference (only to NFS writes) but how much I don't know -
- I have heard figures such as 600% quoted.
-
- >does user activity on the system slow down serving as much
- >as when unaccelerated?
- >(i.e. due to budget restrictions, we have to let our users
- >log in to the server, which at present is a bad idea...)
-
- The load on the server is fairly minimal as its the card which does most
- of the work.
-
- >How is all this affected by Solaris 2.0 (if anybody knows)?
-
- Don't know yet - I guess they MUST release a Solaris 2.0 version of the
- software. Be careful when using this product with Suns DiskSuite software
- if you have it though and NEVER try it with DiskSuites Disk Mirroring...
-
- Rodney...
- --
- Rodney Campbell - AOTC |Email : rodney@cssc-syd.tansu.com.au
- Advanced Network Products |Snail : Level 1, 18-20 Orion Rd, Lane Cove West
- Customised Software Solutions | - PO Box A226, Sydney South 2000, Australia.
- Centre - Sydney |Phone : +61 (0)2 911 3123 Fax: +61 2 911 3199
-