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: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Alex Zbyslaw
Sent: 22 June 2005 14:49
To: [email protected]
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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