Everyone, about 4 years ago, I tried to install CentOS 6 on a Supermicro server with SCSI drives using a LSI raid system. I could never figure out or find a way to make the installation disc of Centos 6 identify the SCSI drives. The installation disc for Centos 5 identified the SCSI drives without a problem. I finally gave up on Centos 6 and installed Centos 5 and the system has worked very well for the last 4 years Now that Centos 5 has been retired, I would like to install Centos 7 on this server. Does the install disc for Centos 7 have the same issues with SCSI drives as Centos 6? Has anyone used Centos 7 on SCSI drives, or am I going to need to get an upgrade of the server? The server is working great. Greg Ennis -- Gregory P. Ennis, M.D., M.R.O. Medical Director EcCare Health Centers www.EcCare.com 972-659-1234
> On Apr 29, 2017, at 9:50 AM, Gregory P. Ennis <PoMec at PoMec.Net> wrote: > > find a way to make the installation disc of Centos 6 identify the SCSI > drives.What model LSI card? Is that card on the RHEL hardware support list? Does LSI/Dell have drivers on their site? Have you tried drivers from LSI/Dell and using the dd(driver disk) option during install?
On Sat, 2017-04-29 at 08:50 -0500, Gregory P. Ennis wrote:> Everyone, > > about 4 years ago, I tried to install CentOS 6 on a Supermicro server > with SCSI drives using a LSI raid system. I could never figure out or > find a way to make the installation disc of Centos 6 identify the SCSI > drives. The installation disc for Centos 5 identified the SCSI drives > without a problem. I finally gave up on Centos 6 and installed Centos 5 > and the system has worked very well for the last 4 years > > Now that Centos 5 has been retired, I would like to install Centos 7 on > this server. Does the install disc for Centos 7 have the same issues > with SCSI drives as Centos 6? Has anyone used Centos 7 on SCSI drives, > or am I going to need to get an upgrade of the server? The server is > working great. >I installed CentOS 7 on a machine with an LSI Ultra 320 SCSI card in it and I don't remember having any problems. But there again, the OS on that system is installed on a separate SAS MegaRAID drive and the SCSI is just used for user files, so I never paid much attention to it during install. P.
On 04/29/2017 09:50 AM, Gregory P. Ennis wrote:> Has anyone used Centos 7 on SCSI drives, > or am I going to need to get an upgrade of the server? The server is > working great.I am, on IBM LS20 blades. The SCSI controller, according to lspci, is: 02:02.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 08) I'm not using it in RAID mode.
Date: Sat, 29 Apr 2017 10:17:55 -0400> On Apr 29, 2017, at 9:50 AM, Gregory P. Ennis <PoMec at PoMec.Net> wrote: > > find a way to make the installation disc of Centos 6 identify the SCSI > drives.What model LSI card? Is that card on the RHEL hardware support list? Does LSI/Dell have drivers on their site? Have you tried drivers from LSI/Dell and using the dd(driver disk) option during install? Steven, thank you for your help. I am remote from the unit today, and do not have a good way to look at the board today, but the contents of /proc/scsi/scsi is :> Host: scsi0 Channel: 00 Id: 08 Lun: 00 > Vendor: SUPER Model: GEM359 REV001 Rev: 1.09 > Type: Processor ANSI SCSI revision: 02 > Host: scsi0 Channel: 02 Id: 00 Lun: 00 > Vendor: MegaRAID Model: LD 0 RAID1 286G Rev: 1L51 > Type: Direct-Access ANSI SCSI revision: 02 > Host: scsi0 Channel: 02 Id: 01 Lun: 00 > Vendor: MegaRAID Model: LD 1 RAID1 286G Rev: 1L51 > Type: Direct-Access ANSI SCSI revision: 02and the contents of /proc/scsi/sg is> SUPER GEM359 REV001 1.09 > MegaRAID LD 0 RAID1 286G 1L51 > MegaRAID LD 1 RAID1 286G 1L51 >I do not have a RedHat subscription, but do have an account. When I did a search on "GEM359" it was not found. I have not been able to wade through the Broadcom web site to see if they have any drivers for the LSI, but have not finished. I was not able to find anything when I tried to use Centos 6; I was hoping that this was remedied for Centos 7 I have never used the dd option during an install, but am willing to learn. Greg
On 04/29/2017 06:50 AM, Gregory P. Ennis wrote:> about 4 years ago, I tried to install CentOS 6 on a Supermicro server > with SCSI drives using a LSI raid system.Red Hat does discontinue support for some storage driver for very old hardware when they start a new release series. For EL6, that list is here: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Migration_Planning_Guide/sect-Migration_Guide-Package_Changes-Driver_Changes.html#sect-packages-discontinued-drivers https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Migration_Planning_Guide/sect-packages-deprecated-drivers.html For 7: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Migration_Planning_Guide/sect-Red_Hat_Enterprise_Linux-Migration_Planning_Guide-Removed_Drivers.html I did a cursory check, and don't see any drivers that were removed in 6 present in 7. Run 'lsmod' on the system you're currently running and see if you can locate the storage driver. I'm guessing it's "megaraid" which is not present in EL7.
On 4/29/2017 6:50 AM, Gregory P. Ennis wrote:> about 4 years ago, I tried to install CentOS 6 on a Supermicro server > with SCSI drives using a LSI raid system.I'm curious just how OLD this SCSI RAID system is? Everything I've deployed in the last 8 or 10 year has been SAS based, parallel SCSI went the way of buggy whips some years back, I think the last parallel SCSI servers I decommissioned were based on the Pentium-4 generation of Intel Xeon processors, like Nocona.. the power vs performance of these old servers makes them a losing bet, especially now that you're way on the wrong side of the typical 5 year halflife of computer electronics. a single socket low end modern server would have many times the CPU and IO performance, and would be able to run many such workloads virtualized. -- john r pierce, recycling bits in santa cruz
On 04/29/2017 06:50 AM, Gregory P. Ennis wrote:> about 4 years ago, I tried to install CentOS 6 on a Supermicro server > with SCSI drives using a LSI raid system.Red Hat does discontinue support for some storage driver for very old hardware when they start a new release series. For EL6, that list is here: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Migration_Planning_Guide/sect-Migration_Guide-Package_Changes-Driver_Changes.html#sect-packages-discontinued-drivers https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Migration_Planning_Guide/sect-packages-deprecated-drivers.html For 7: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Migration_Planning_Guide/sect-Red_Hat_Enterprise_Linux-Migration_Planning_Guide-Removed_Drivers.html I did a cursory check, and don't see any drivers that were removed in 6 present in 7. Run 'lsmod' on the system you're currently running and see if you can locate the storage driver. I'm guessing it's "megaraid" which is not present in EL7. Gordon, Thank you for your help You were right : dm_message 36289 1 dm_raid45 dm_region_hash 46145 1 dm_raid45 dm_log 44993 3 dm_mirror,dm_raid45,dm_region_hash dm_mod 103313 4 dm_mirror,dm_multipath,dm_raid45,dm_log dm_mem_cache 38977 1 dm_raid45 ahci 74317 0 ata_piix 57285 0 libata 210769 2 ahci,ata_piix aic79xx 202521 0 scsi_transport_spi 59841 1 aic79xx shpchp 70637 0 megaraid_mbox 66001 5 sd_mod 56513 7 scsi_mod 202201 14 be2iscsi,ib_iser,iscsi_tcp,bnx2i,libcxgbi,libiscsi2,scsi_transport_iscsi2,scsi_dh,sg,libata,aic79xx,scsi_transport_spi,megaraid_mbox,sd_mod megaraid_mm 44793 1 megaraid_mbox Looks like it is time for an upgrade Greg