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tsuehpsyde
Tux's lil' helper
Joined: 28 Jul 2004
Posts: 103
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 Posted: Fri Feb 24, 2006 10:51 pm Post subject: Need help setting up RAID-5 on 3Ware 7605-4LP |
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Hi,
This is my first attempt at using a RAID in Linux, so I'm a little lost. I've googled my heart out, but have only really found support for setting up software RAIDs, which really doesn't help me out too much.  Basically, I'm looking for a how-to for setting up a RAID-5 in my server. I have a 160GB boot drive, and then four 200GB PATA Maxtor's setup on a 64kb chunk RAID-5 array, which has already been built via the 3Ware interface on boot. I added support for RAID 4/5 in the kernel (2.6.15-gentoo-r1) but I got to thinking and figured that must be for software RAIDs. I'd like the entire server to run off of just the RAID array, but if I have to keep a seperate single drive in the server, then so be it. I just need to know what the block device for my array is called, how to get Linux to find it, which filesystem I should use on it (I'm guessing ReiserFS), and whether it's possible to install directly onto the array, or if it's easier to just mount the array as /storage and use my 160GB as the main system drive.
Thanks! |
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tsuehpsyde
Tux's lil' helper
Joined: 28 Jul 2004
Posts: 103
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| Posted: Sat Feb 25, 2006 4:55 am Post subject: |
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| Found it. The block device is /dev/sda and it shows up after you install the driver under SCSI devices. |
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s0be
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Joined: 23 Nov 2002
Posts: 240
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| Posted: Sat Feb 25, 2006 7:07 am Post subject: |
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| tsuehpsyde wrote: | | Found it. The block device is /dev/sda and it shows up after you install the driver under SCSI devices. |
Isn't hardware raid swell? |
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tsuehpsyde
Tux's lil' helper
Joined: 28 Jul 2004
Posts: 103
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| Posted: Sat Feb 25, 2006 7:26 am Post subject: |
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| s0be wrote: | | tsuehpsyde wrote: | | Found it. The block device is /dev/sda and it shows up after you install the driver under SCSI devices. |
Isn't hardware raid swell? |
I'm moving all of my files from 4 different machines onto my central fileserver onto the array...and man, hardware raid is so nice and fluid. By far the best fileserver I've used, and since I'm using RAID-5 my write speeds are slower...but even at 6MB/s on a 100Mbit network, it's as fluid as I've ever used. No slowdowns, then stalls, then speed ups, then slow downs, then speed ups and stalls again...plus this storage is actually redundant. I can't wait to download my Gentoo iso back off of it once I get everything on there to see how blistering read speeds are.  |
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s0be
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Joined: 23 Nov 2002
Posts: 240
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| Posted: Sat Feb 25, 2006 7:33 am Post subject: |
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| tsuehpsyde wrote: | | s0be wrote: | | tsuehpsyde wrote: | | Found it. The block device is /dev/sda and it shows up after you install the driver under SCSI devices. |
Isn't hardware raid swell? |
I'm moving all of my files from 4 different machines onto my central fileserver onto the array...and man, hardware raid is so nice and fluid. By far the best fileserver I've used, and since I'm using RAID-5 my write speeds are slower...but even at 6MB/s on a 100Mbit network, it's as fluid as I've ever used. No slowdowns, then stalls, then speed ups, then slow downs, then speed ups and stalls again...plus this storage is actually redundant. I can't wait to download my Gentoo iso back off of it once I get everything on there to see how blistering read speeds are. |
I have my /usr/portage/distfiles on a raid 1+0 on an adaptec i2o raid controller, shared over nfs. Gigabit lan across the board, and 802.11G too. It all works just swell. Also have a 6 drive raid 5 (4 drives, plus parity, plus hot spare) that's my / on that machine. Now that the machine sounds all hot stuff, all the drives are 18 gig cheetahs off of ebay. The controller was the most expensive part ($90) for a 256meg 4 channel scsi raid controller.
02:0a.1 I2O: Adaptec (formerly DPT) SmartRAID V Controller (rev 02) |
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tsuehpsyde
Tux's lil' helper
Joined: 28 Jul 2004
Posts: 103
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| Posted: Sat Feb 25, 2006 4:57 pm Post subject: |
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| Any recommendations on a good PCI-X gigabit card? I just have a regular PCI Linksys 100BaseT network adapter atm, which works well, but I'd like to be on the PCI-X bus, plus be able to go gigabit from my workstation to fileserver once I get a gigabit switch. |
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s0be
Apprentice
Joined: 23 Nov 2002
Posts: 240
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| Posted: Sat Feb 25, 2006 6:24 pm Post subject: |
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| tsuehpsyde wrote: | | Any recommendations on a good PCI-X gigabit card? I just have a regular PCI Linksys 100BaseT network adapter atm, which works well, but I'd like to be on the PCI-X bus, plus be able to go gigabit from my workstation to fileserver once I get a gigabit switch. |
PCI-X as in the 64bit 66mhz standard pci slot (plus an eisa/vlb like extension) or PCI-E, that 90% of new computers are coming with? |
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tsuehpsyde
Tux's lil' helper
Joined: 28 Jul 2004
Posts: 103
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| Posted: Sat Feb 25, 2006 6:50 pm Post subject: |
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PCI-X, as in the 64-bit server slot like my RAID card is. I'm on a Tyan s2460 with dual AthlonMP 2200+'s.
Also, I just moved the server the array was on from the uplinked 3Com managed hub on my network to the 10/100 switch on my WRT54G, and my upload speeds went from 6MB/s to 10.5MB/s! And it's still fluid...download was 11.3MB/s (using a 650MB file). God this thing is so fast. Hell, downloading on the same machine on the same network connection on a single 7200RPM drive was much slower....this thing kicks ass. I shoulda moved this thing onto the switch last night when I was doing all of the file uploading.  |
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