Software RAID (0+1)


 
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Operating Systems HP-UX Software RAID (0+1)
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Old 11-16-2007
Software RAID (0+1)

Hi!
A couple of months ago a disk failed in our JBOD cabinett and I have finally got a new disk to replace it with. It was a RAID 0 so we have to create and configure the whole thing again. First we thought of RAID 1+0 but it seems you can't do this with LVM. If you read my last thread, you can see I'm quite new at this so I just need some pointers to where I should begin. Maybe an howto-guide or where I could find some helpful documentation. We got 15 disks where 14 should be used in the RAID and then have 1 spare. So it will be two stripe set with 7 disks each and then mirror them somehow.

Really could use some help or pointers on where to begin.

Regards,
Hoff
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CISS(4) 						   BSD Kernel Interfaces Manual 						   CISS(4)

NAME
ciss -- HP/Compaq Smart ARRAY 5/6 RAID controllers SYNOPSIS
ciss* at pci? function ? DESCRIPTION
The ciss driver provides support for the CISS interface implemented by fifth and later generations of the HP/Compaq Smart ARRAY family of controllers. The CISS interface is defined in the document entitled CISS Command Interface for SCSI-3 Support Open Specification, Version 1.04, Valence Number 1, Compaq Computer Corporation, 2000/11/27. This driver supports several Compaq and HP controllers implementing the CISS interface, including: o Compaq Smart Array 5300 version 1 o Compaq Smart Array 5300 version 2 o Compaq Smart Array 5i version 1 o Compaq Smart Array 5i version 2 o HP Smart Array 5312 o HP Smart Array 6i o HP Smart Array 641 o HP Smart Array 642 o HP Smart Array 6400 o HP Smart Array 6400 EM o HP Smart Array E200 o HP Smart Array E200i o HP Smart Array P400 o HP Smart Array P400i o HP Smart Array P600 o HP Smart Array P800 o HP Smart Array V100 o HP Smart Array 1 through 13 These controllers support RAID 0, RAID 1, RAID 5, JBOD, and superpositions of those configurations. Although the controllers are actual RAID controllers, the ciss driver makes them look just like SCSI controllers. All RAID configuration must be done through the controllers' BIOSes. Hardware from previous generations of this product family may be supported by the cac(4) driver. SEE ALSO
bio(4), cac(4), intro(4), pci(4), scsi(4), sd(4) HISTORY
The ciss driver first appeared in NetBSD 3.1. AUTHORS
The ciss driver was written by Michael Shalayeff <mickey@openbsd.org>, and ported to NetBSD by Tonnerre Lombard <tonnerre@netbsd.org>. BSD
May 28, 2008 BSD