Hi! http://mail1.expro.pl/~porridge/dist.png shows the distribution of file sizes on our mail server (actually just the partition holding maildirs). The sample was 800000 files. "-512" means zero-byte files. "0" means the files whose sizes are greater than zero, but less than 512. "512": greater than 512, but less than 1024 etc
The green line shows the distribution of messages in Maildir/(new|cur|tmp). The red one also includes the number of other files (mostly sqwebmail index and preferences files, .qmail, etc). We probably need to optimize on reads, since currently there are 16 times more block reads than block writes on that partition. Given that, what would be the best stripe size for (hardware) RAID 5 (currently 5 disks)? I read somewhere that large stripe sizes are good for small random reads, but what is your experience? Or maybe RAID 5 is totally unreasonable for such usage? regards, Marcin -- Marcin Owsiany <[EMAIL PROTECTED]> http://marcin.owsiany.pl/ GnuPG: 1024D/60F41216 FE67 DA2D 0ACA FC5E 3F75 D6F6 3A0D 8AA0 60F4 1216 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]