Please check with the server provider if multi-lun is supported with the
adapter you are using.
--Sumant
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Reinaldo
Carvalho
Sent: Wednesday, May 30, 2007 4:10 PM
To: [email protected]
Subject: megaraid.c, all kernel versions, problem with multi-luns
Hi,
I have a Dell PowerEdge Expandable RAID controller, with a hardware
Raid-5 at Channel 01 running perfectly, and a nCipher Crypter at Channel
02.
This controller doesn't correctly detect devices (e.g. nCipher
Crypter) with multiples LUNs. Only one LUN is detected.
At another controller (e.g. Adaptec 79xx) two LUNs were detect. I
compiled 2.6.8, 2.6.18 and 2.6.21.3 to test megaraid driver and all
failed detecting two LUNs.
I think that this is a firmware problem, but i'd like have some
opinions.
I read some docs
(http://www.suse.de/~garloff/linux/scsi-scan/scsi-scanning.html,
http://www.ictp.trieste.it/~radionet/nuc1996/ref/howto-html/scsi-howto-2
.html)
and this problem doesn't seem to be simple.
Best regards,
More information with Dell PowerEdge Expandable RAID controller (LSI
Logic MegaRaid):
Attached devices:
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: PE/PV Model: 1x5 SCSI BP Rev: 1.0
Type: Processor ANSI SCSI revision: 02
Host: scsi0 Channel: 01 Id: 00 Lun: 00
Vendor: nCipher Model: Fastness Crypto Rev: 2*00
Type: Processor ANSI SCSI revision: 02
Host: scsi0 Channel: 02 Id: 00 Lun: 00
Vendor: MegaRAID Model: LD 0 RAID5 279G Rev: 522A
Type: Direct-Access ANSI SCSI revision: 02
14:0e.0 RAID bus controller: Dell PowerEdge Expandable RAID controller
4 (rev 06)
Subsystem: Dell PowerEdge Expandable RAID Controller 4e/Di
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping+ SERR+ FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (32000ns min), Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 22
Region 0: Memory at d7ff0000 (32-bit, prefetchable) [size=64K]
Region 2: Memory at defc0000 (32-bit, non-prefetchable)
[size=256K]
Expansion ROM at df000000 [disabled] [size=128K]
Capabilities: <access denied>
14:0e.0 0104: 1028:0013 (rev 06)
Information with Adaptec 79xx or others SCSI controllers:
Host: scsi0 Channel: 01 Id: 00 Lun: 00
Vendor: nCipher Model: Fastness Crypto Rev: 2*00
Type: Processor ANSI SCSI revision: 02
Host: scsi0 Channel: 01 Id: 00 Lun: 01
Vendor: nCipher Model: Fastness Crypto Rev: 2*00
Type: Processor ANSI SCSI revision: 02
--
Reinaldo Carvalho
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