You need to use the raid 4/5 patch from the maintainers website to have dmraid 4/5 support added. Here's the link: http://people.redhat.com/heinzm/sw/dm/dm-raid45/dm-raid45-2.6.25-rc2_20080221.patch.bz2 Unzip this patch using bunzip2 and apply it to your 2.6.25-rc2 kernel. Then using "make gconfig" or "make menuconfig" go into "Device Drivers->Multiple devices driver support (RAID and LVM)->Device mapper support" and select "RAID 4/5 target". Brian Wood Software Engineer Intel Corp., Manageability & Platform Software Division brian.j.wood@xxxxxxxxx >-----Original Message----- >From: dm-devel-bounces@xxxxxxxxxx [mailto:dm-devel-bounces@xxxxxxxxxx] On Behalf Of silentphoebus >Sent: Wednesday, February 27, 2008 9:00 AM >To: dm-devel@xxxxxxxxxx >Subject: RE: RE: RAID5 compatibility. > >Thank you for your answer. >I can't manage the raid5 to work, >here are what what i do : > >dmraid -s give me : >*** Group superset isw_hdaagdcbc >--> Subset >name : isw_hdaagdcbc_RAID5 >size : 1465177344 >stride : 128 >type : raid5_la >status : ok >subsets: 0 >devs : 4 >spares : 0 > >dmraid -tay give me : >isw_hdaagdcbc_RAID5: 0 1465177344 raid45 core 2 131072 nosync raid5_la 1 128 4 -1 /dev/sda 0 >/dev/sdb 0 /dev/sdc 0 /dev/sde 0 > >and dmraid -ay give me : >ERROR: device-mapper target type "raid45" not in kernel >and the /dev/mapper/ show only the control file. > >i have try with the from the cvs tree and the current tools. >i use the latest kernel with raid456 compiled as modules and loaded. > >What should i do to make the raid5 work. >Thank you very much. >> >> >> > Message du 26/02/08 à 10h00 >> > De : "Cetnerowski, Adam" <adam.cetnerowski@xxxxxxxxx> >> > A : silentphoebus@xxxxxxxx, "device-mapper development" <dm-devel@xxxxxxxxxx> >> > Copie à : >> > Objet : RE: RAID5 compatibility. >> > >> > >> > >> > > -----Original Message----- >> > > From: dm-devel-bounces@xxxxxxxxxx [mailto:dm-devel-bounces@xxxxxxxxxx] >> > On > Behalf Of silentphoebus >> > > Sent: Monday, February 25, 2008 8:07 PM >> > > To: dm-devel@xxxxxxxxxx >> > > Subject: RAID5 compatibility. >> > > >> > > Hi all, >> > > i found a lot of informations on the internet for intel software raid5 >> > > with ICH controler. >> > > So, the best is maybe to ask here. >> > > Is it compatible with the dmraid mapper or not ? >> > > Thank you for taking time to read. >> > >> > Hi, >> > >> > The software RAID 5 does indeed use device mapper. I would like to note >> > that at the moment it is in the experimental stage, while we work on >> > some of the features. >> > >> > Adam Cetnerowski >> > Intel Technology Poland >> > >> > > > >-- >dm-devel mailing list >dm-devel@xxxxxxxxxx >https://www.redhat.com/mailman/listinfo/dm-devel -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
