AFAIR, there's a raid configuration screen, where you can 'enable' the new disks, and specify how they are to play with the existing ones. You enter the configuration screen on reboot.
Gary Mc Closkey
Digital Terrestrial Television Network
Radio Telefis Eireann (RTE), Ireland
Tel: +353-1-208-2992 fax: +353-1-208-3090
+From: ilug-admin at linux.ie [mailto:ilug-admin at linux.ie]On Behalf Of John
+Sent: 11 April 2000 10:37
+To: ilug at linux.ie
+Subject: Re: [ILUG] Linux RAID introduction
+On Tue, Apr 11, 2000 at 09:55:12AM +0100, Gary Mc Closkey mentioned:
+> He's talking about software RAID there, not hardware btw. Some claim
+> that in certain circumstances that software RAID is better than
+> hardware, though YMMV.
+ Speaking of, anyone added disks to a Dell box, that has a
+card ? One of our servers here had a pair of 9GB disks,
+working away Raid
+ Then I added two more, initialised them in the BIOS (took
+poxy ages), and
+then when I booted the machine up, it didn't see a "/dev/sdb" like I'd
+expected. Any ideas what else I've to do ? The relevant dmesg
+scsi2 : Found a MegaRAID controller at 0xe490, IRQ: 18
+megaraid: [Uc77:1.47] detected 2 logical drives
+scsi2 : AMI MegaRAID Uc77 254 commands 16 targs 2 chans 8 luns
+scsi : 3 hosts.
+scsi2: scanning channel 1 for devices.
+scsi2: scanning channel 2 for devices.
+scsi2: scanning virtual channel for logical drives.
+ Vendor: MegaRAID Model: LD0 RAID1 8568R Rev: Uc77
+ Type: Direct-Access ANSI SCSI revision: 02
+Detected scsi disk sda at scsi2, channel 2, id 0, lun 0
+ So, it sees 2 logical drives, but only detects one ?
+"The fool must be beaten with a stick, for an intelligent person
+the merest hint is sufficient" -- Zen Master Greg
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