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Darkz_Soul
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Joined: 04 Nov 2009
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 Posted: Mon Jun 21, 2010 6:12 pm Post subject: Hardware Raid |
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| I am working on installing Gentoo on a server. The server has 6 hardrives 5 in a Raid5 from the controller and the other is a separate IDE hardrive designed to house the OS and stuff. The Raid5 is a SCSI controller. But when i go to prep the "harddrives" i cannot see anything more than the IDE disk. There is about 15 fd0u****** devices that I believe are related to the raid controller. Can anybody assist me in figuring out how to prep the Raid5 drive. |
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John R. Graham
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| Posted: Mon Jun 21, 2010 6:35 pm Post subject: |
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The /dev/fd0* drivers are for the floppy drives. Prepping the RAID array will generally be with either (a) software that is available on the RAID controller boot ROM and accessible by hitting a special key sequece during boot (Adaptec does it this way) or (b) with provided software that often runs under DOS or Windows only. What's the brand of the controller?
Also, in order for the RAID devices to show up in /dev, the controller's driver needs to be loaded (either compiled into the kernel or loaded at run-time). What doestell you?
- John
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Darkz_Soul
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Joined: 04 Nov 2009
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| Posted: Mon Jun 21, 2010 6:43 pm Post subject: lspci output |
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| Quote: | 00:00.0 Host bridge: Broadcom CMIC-WS Host Bridge (GC-LE chipset) (rev 13)
00:00.1 Host bridge: Broadcom CMIC-WS Host Bridge (GC-LE chipset)
00:00.2 Host bridge: Broadcom CMIC-LE
00:03.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)
00:04.0 System peripheral: Compaq Computer Corporation Integrated Lights Out Controller (rev 01)
00:04.2 System peripheral: Compaq Computer Corporation Integrated Lights Out Processor (rev 01)
00:0f.0 ISA bridge: Broadcom CSB5 South Bridge (rev 93)
00:0f.1 IDE interface: Broadcom CSB5 IDE Controller (rev 93)
00:0f.2 USB Controller: Broadcom OSB4/CSB5 OHCI USB Controller (rev 05)
00:0f.3 Host bridge: Broadcom CSB5 LPC bridge
00:10.0 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 05)
00:10.2 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 05)
00:11.0 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 05)
00:11.2 Host bridge: Broadcom CIOB-X2 PCI-X I/O Bridge (rev 05)
01:03.0 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev 01)
01:03.1 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev 01)
01:04.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet (rev 02)
02:01.0 RAID bus controller: Compaq Computer Corporation Smart Array 5i/532 (rev 01)
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so the raid controller shows up. |
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John R. Graham
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| Posted: Mon Jun 21, 2010 6:48 pm Post subject: |
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All that means is that it's plugged in. Let me research the driver.
Okay, the driver is called cciss. In the kernel config, it's at | Code: | -> Device Drivers
-> Block devices
-> Compaq Smart Array 5xxx support |
Just proceed with the Gentoo install to the point where you build your kernel and, while configuring the kernel, make sure that that driver is built in.
- John
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Darkz_Soul
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Joined: 04 Nov 2009
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| Posted: Mon Jun 21, 2010 7:34 pm Post subject: Driver |
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| This will allow me to see the raid controller's disks then. That sounds great |
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dE_logics
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Joined: 02 Jan 2009
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| Posted: Tue Jun 22, 2010 5:13 am Post subject: |
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Maybe it's a FAKE RAID controller...
If that's the case, pluck it out and use software RAID.
PS -- I never knew RAID controllers (not FAKE ones) required drivers... Is this true?
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John R. Graham
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| Posted: Tue Jun 22, 2010 11:23 am Post subject: |
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It's not a fake RAID controller but a real one, which is superior in performance, in all modern cases, to software RAID. The exception came with very old cards at a time when Intel and AMD were advancing the clock rate of the main CPU so rapidly that the main CPU overtook the performance of the embedded CPUs built onto some RAID controllers. This is no longer the case.
All devices (within the meaning of the term) need device drivers.
- John
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dE_logics
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| Posted: Tue Jun 22, 2010 4:33 pm Post subject: |
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Oh. Now that's bad...
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