[Thu, 30 Oct 2003 10:49:32 -0800] Alan <[EMAIL PROTECTED]> <-- : > Shouldn't /dev/md0 be a bit faster, basically 50-60MB/sec? My drives > and raid config look like the following, any suggestions on getting > 100MB/sec like another poster here with RAID0 would be appreciated :)
Well, I'm the other poster I think :-) I just would like to remind the 100 MB/sec are obtained with 4 disks, not 2. It's not possible with 2 disks I guess, unless you use very expensive ones, like 10,000 or 15,000 rpm SCSI disks. > I'd guess it's either overhead or I don't have the proper 133 cables on > my drives (pretty sure I do though) or something like that. This is on > an A7N8X-DX board with IDE hard drives, agpgart with nvidia support > built into the kernel, dma on by default in the kernel. No need for ATA/133 cables if you use ATA/100 disks. > phoenix warez # cat /etc/raidtab > raiddev /dev/md0 > raid-level 0 > nr-raid-disks 2 > nr-spare-disks 0 > persistent-superblock 1 > chunk-size 32 > device /dev/hdb1 > raid-disk 0 > device /dev/hda6 > raid-disk 1 As mentioned before, I have "nr-raid-disks 4". You could give a try for "chunk-size 64", this worked best for my box. -- Michael Linux: Because rebooting is for adding new hardware. -------------------------------------- Gentoo Linux 1.4 (Intel) Kernel 2.4.20 [SMP,ACPI,RAID] 12281.44 BogoMIPS -- [EMAIL PROTECTED] mailing list
