Re: SiI 3114 and sata_sil

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Florin Andrei wrote:
Jeff Garzik wrote:
Florin Andrei wrote:
(I'm not subscribed to linux-ide)

I've two almost identical systems (slightly different CPUs) that use SiI 3114 for SATA and RAID.

One of them was installed a while ago with Fedora Core 5 (kernel 2.6.15-1.2054_FC5smp) and whoever installed it was able to turn on hardware RAID.

This chip does not support hardware RAID. The capability simply isn't there in the silicon.

http://linux-ata.org/faq-sata-raid.html#sii

Wow! :-(

So that means that the FC5 system is not actually on RAID? Even though it seems so? (using /dev/dm-* for filesystem volumes)

# lspci | grep -i sata
03:05.0 RAID bus controller: Silicon Image, Inc. SiI 3114 [SATALink/SATARaid] Serial ATA Controller (rev 02)
# df -m
Filesystem           1M-blocks      Used Available Use% Mounted on
/dev/dm-6               125931      2999    116432   3% /
/dev/dm-1                   99        13        81  14% /boot
tmpfs                     1012         0      1012   0% /dev/shm
/dev/dm-2                 9917       151      9254   2% /tmp
/dev/dm-3                 9917       237      9168   3% /var
# lsmod | grep ata
sata_sil               13897  2
libata                 58321  1 sata_sil
scsi_mod              129641  3 sg,libata,sd_mod
# cat /etc/modprobe.conf | tail -n 1
alias scsi_hostadapter sata_sil

So in fact /dev/dm-* are just on one disk each (not RAID1), or what is going on here?

The's dmraid providing /software/ RAID as noted in http://linux-ata.org/faq-sata-raid.html#dmraid

	Jeff



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