Date: Thu, 24 May 2007 19:11:27 -0400 (EDT) From: "kalin mintchev" <kalin@el.net> To: freebsd-questions@freebsd.org Cc: rsmith@xs4all.nl Subject: Re: raid or not raid Message-ID: <62361.74.64.6.149.1180048287.squirrel@mail.el.net> In-Reply-To: <20070524152750.GB20309@slackbox.xs4all.nl> References: <54316.74.2.36.140.1179892303.squirrel@mail.el.net> <61733.74.64.6.149.1180002606.squirrel@mail.el.net> <20070524152750.GB20309@slackbox.xs4all.nl>
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> On Thu, May 24, 2007 at 06:30:06AM -0400, kalin mintchev wrote: >> >> so nobody on this list knows anything about raid? >> wrong list? >> >> > hi all.. >> > >> > i have a box in a remote hosting facility that claims that the machine >> has >> > two discs raided in it but df and fstab show only one disc with a >> bunch of >> > slices. >> > under devices there is another name - ad6 - but it's not mounted >> anywhere. >> > the one i see both in df and the fstab is ad4 with one big slice and >> > different partitions.... > > My (VIA Tech V-RAID) raid disk shows up as ar0, although the ad4 and ad6 > device nodes exist as well. > > Do you have the ataraid device in the kernel? yes. but isn;t that in by default in 5.4 GENERIC?! >> > they insist there are 2 raided discs in tha machine. the os is 5.4 and >> i >> > think at that point the raid drivers were still considered >> > 'experimental'. > > Then ask them how it's done. > >> > it makes sense to me that if i don't see a second drive in the fstab >> there >> > isn;t any mounting which means that there is no raid going on... > > If you're seeing an ad device, it's not RAID-ed, AFAIK. > >> > is there any other way i can make sure if raid is actually on? >> > would there will be any logs somewhere? >> > the machine has been up for about 2 years and the dmesg is long >> gone... > > It should be in /var/run/dmesg.boot. thanks. i guess that solves the ad6 mistery: atapci0: <Intel ICH5 UDMA100 controller> port 0xfc00-0xfc0f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 31.1 on pci0 ata0: channel #0 on atapci0 ata1: channel #1 on atapci0 atapci1: <Intel ICH5 SATA150 controller> port 0xcc80-0xcc8f,0xcc98-0xcc9b,0xcca0-0xcca7,0xccb0-0xccb3,0xccb8-0xccbf irq 18 at device 31.2 on pci0 ata2: channel #0 on atapci1 ata3: channel #1 on atapci1 ..................................................... ad4: 152587MB <WDC WD1600JS-75MHB0/03.01C03> [310019/16/63] at ata2-master SATA150 ad6: 152587MB <WDC WD1600JS-75MHB0/03.01C03> [310019/16/63] at ata3-master SATA150 Mounting root from ufs:/dev/ad4s1a unless "at device 31.2 on pci0" points to some RAID evidence - which i think it's false - than i read this as the ad6 disk sits there unused. am i right?! according to pciconf the atapci0 and atapci1 are differnt conrollers - EIDE and SATA so they can both be on pci0 as 31.1 and 31.2?! still no RAID though... thanks again... > > Roland > -- > R.F.Smith http://www.xs4all.nl/~rsmith/ > [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] > pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) >
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