Dell PowerEge 2850 and RAID
Stephane Raimbault
stephane at enertiasoft.com
Fri Jun 24 06:49:37 GMT 2005
I just discovered that a new port has been submited already on June
22nd by Gerrit Beine. ports/82512: New port: sysutils/megaraid. I
don't see it in my latest cvsup of the ports tree, so I'm guessing it
hasn't been committed into the tree yet.
Thanks,
Stephane
On 24-Jun-05, at 12:28 AM, Stephane Raimbault wrote:
> I also have a Dell PowerEdge 2850 with the PERC 4e/Di Raid card and
> I found some interesting information tonight that will help us all
> out.
>
> http://www.freebsd.org/news/press.html#story200505:02
>
> Basically, LSI now supports FreeBSD and 5.4 seems to have the
> updated drivers... so what does this mean?
>
> Well, I discovered that the PERC 4e/Di Raid card is the same thing
> as the LSI MegaRAID 320-2X. So if you go to www.lsilogic.com and
> go to the download section and find the downloads for the "LSI
> MegaRAID 320-2x" you will see that there is a "driver" for FreeBSD.
>
> Download this file and unzip the contents. Inside there is a file
> called "MegaRC 1.04.zip" Unzip that and you will have a file
> called "megarc" make the file executable "chmod +x megarc" and run
> the command "./megarc -option"
>
> This will give you some options that you can play with.
>
> So far I've discovered the following useful information:
>
> ./megarc -AllAdpInfo
> This shows all your supported adapters. In my case it found
> the following:
>
> AdapterNo FirmwareType CardType
> 00 40LD/8SPAN PERC 4/DC
>
>
> I then did this to display the status/configuration of the controller:
>
> ./megarc -dispCfg -a0
>
> Finding Devices On Each MegaRAID Adapter...
> Scanning Ha 0, Chnl 1 Target 15
>
> Logical Drive : 0( Adapter: 0 ): Status: OPTIMAL
> ---------------------------------------------------
> SpanDepth :01 RaidLevel: 1 RdAhead : Adaptive Cache:
> DirectIo
> StripSz :064KB Stripes : 2 WrPolicy: WriteBack
>
> Logical Drive 0 : SpanLevel_0 Disks
> Chnl Target StartBlock Blocks Physical Target Status
> ---- ------ ---------- ------ ----------------------
> 0 00 0x00000000 0x043bc000 ONLINE
> 0 01 0x00000000 0x043bc000 ONLINE
>
>
> Logical Drive : 1( Adapter: 0 ): Status: OPTIMAL
> ---------------------------------------------------
> SpanDepth :02 RaidLevel: 1 RdAhead : Adaptive Cache:
> DirectIo
> StripSz :064KB Stripes : 2 WrPolicy: WriteBack
>
> Logical Drive 1 : SpanLevel_0 Disks
> Chnl Target StartBlock Blocks Physical Target Status
> ---- ------ ---------- ------ ----------------------
> 1 02 0x00000000 0x0887c000 ONLINE
> 1 03 0x00000000 0x0887c000 ONLINE
>
> Logical Drive 1 : SpanLevel_1 Disks
> Chnl Target StartBlock Blocks Physical Target Status
> ---- ------ ---------- ------ ----------------------
> 1 04 0x00000000 0x0887c000 ONLINE
> 1 05 0x00000000 0x0887c000 ONLINE
>
>
> This correctly shows my 2 logical drives.
>
> Logical drive 0 (raid 1 between 2 36Gig 10K disks)
> Drive 00 and 01
>
> Logical drive 1 (raid 1 and spanned between 4 72Gig 15K disks)
> Drive 02 and 03 spanned with
> Drive 04 and 05
>
>
>
>
> Might I say... EXCITING times for Dell SCSI RAID owners
>
>
> Cheers,
> Stephane
>
>
> On 22-Jun-05, at 8:26 AM, Danny Cooper wrote:
>
>
>> We have the PE2850 with PERC 4e/Di controller but this can not be
>> monitored
>> through FreeBSD, I am currently looking at a Drac4 to send traps
>> out to
>> another server for monitoring purposes.
>>
>> Danny
>>
>>
>>
>> -----Original Message-----
>> From: owner-freebsd-hardware at freebsd.org
>> [mailto:owner-freebsd-hardware at freebsd.org] On Behalf Of Alex Zbyslaw
>> Sent: 22 June 2005 14:49
>> To: freebsd-hardware at freebsd.org
>> Subject: Dell PowerEge 2850 and RAID
>>
>> I'd really like to get some concrete information about RAID
>> management
>> under FreeBSD/i386 (5.4) on a Dell PowerEdge 2850. I don't have this
>> machine, but it is looking very likely that a client will be
>> getting one
>> and I'd like to have positive things to say about running FreeBSD
>> on it.
>>
>> My major concern is how to monitor the RAID status without
>> resorting to
>> looking at the LEDs flash on the disks (*). Ideally, I'd like to be
>> able to run something from a cron job which told me that
>> everything was
>> OK. If errors were logged to /var/log/messages or similar, that
>> would
>> be a nice plus.
>>
>> As far as I can tell, the machine could have either an LSI 53C1030
>> controller or a Dell PERC 4e/Di controller.
>>
>> For the LSI I can see that it is supported by the mtp driver, but can
>> find nothing else.
>>
>> For the Dell PERC 4e/Di (a different LSI, I believe) it seems to be
>> supported by the amr driver and I have found various references out
>> there to these working under FreeBSD, but nothing specifically about
>> monitoring the RAID.
>>
>> If anyone can provide some concrete information, I'd be grateful. I
>> have also explored the Dell and LSI sites, but neither appear to
>> let you
>> browse their downloads unless you are a registered customer.
>>
>> Thanks,
>>
>> --Alex
>>
>> (*) For a short saga on a RAID which didn't, and no-one knew about
>> it,
>> see
>> http://lists.freebsd.org/pipermail/freebsd-questions/2005-June/
>> 090786.html
>>
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>
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