Thanks everyone. I didn't guess a reply such a very quick response. >On Apr 03, 2002 17:44 +0900, morishima@dtts.co.jp wrote: >> I am using it for file-server, mail-spool, print-server, and nfs-server. >> Many clients are accessing to it. Then latency is more important feature. >> >> Huuum. >> I decided that mode=orderd is the best choce. :-) >> >> How about a journal size? >> Default value is the best choice? > >If you are using it for mail spool and NFS server, then you are best off >to use data=journal. That is because NFS and mail both do a lot of sync >I/O, and data=journal does sync I/O fastest (although it slows down >other I/O if the system is very busy). > >If you are going to use data=journal, then you want a larger journal >than the default size. The actual size depends on your largest amount >of I/O within 5 seconds, so 128-256 MB would be OK for that. If you are >going to use data=ordered (default mode) then a smaller journal is OK. >You will only need to store metadata in the journal, so the default size >of 32MB is probably still OK. Note that it is possible for the entire >journal to be pinned in memory, so if you make the journal too large, >you may have memory problems. It's a very important thing. Think about it again which is better. I'll make a 256MB journal if I chose data=journal. Thanks. >FYI: You reply-to email address does not show up correcly in english >mail clients, I use mozilla on x86 linux and your name shows up in a >non-english characters. I know. I am using a web-based mail client. I want to change a name-field to alpha-numeric, But administrator doesn't... ---------------- Hideki Morishima
