(Illustration by Gaich Muramatsu)
On Fri, 10 Aug 2001, Andrea Cerrito wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hi. > > I've 4 fast questions about client cache. My volume looks like: > > [root_at_homer-a /root]# cfs lv /coda/qmail/ > Status of volume 0x7f000004 (2130706436) named "qmailfs.rootvol" > Volume type is ReadWrite > Connection State is Connected > Minimum quota is 0, maximum quota is unlimited > Current blocks used are 9668 > The partition has 6908580 blocks available out of 6922096 > Write-back is disabled > > 1) What about Write-back? Is it better to set it enabled or disabled? It is better disabled. It is an experimental option that allows a client to delay writing modifications to the server until some other client wants to read them. It improves performance on compiles & write intensive applications, but interacts poorly with other clients that are hoarding, since they count as readers. > 2) "The partition has 6908580 blocks available out of 6922096" does > it means that cache is empty? I think that this is the volume size... > if it is so, how can I see the cache size (used/free)? its the partiton on the server that is serving the volume. eg: /vicepa to find the client cache info on linux, df. other OSs don't have a way of displaying it. Except after a -init, the cache will always be full anyway. > 3) How can I change cache size? Is it ok to shutdown venus, change conf > file, and restart it with --init options? yes. > 4) Is it safe (=recommended) to start venus and set it "strong"? Does > the strong option have a time limit or is it permament? it should be permanent. ShafeeqReceived on 2001-08-10 10:02:36