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Operating Systems AIX SAN Disk Appearing double in AIX Post 302845561 by dukessd on Wednesday 21st of August 2013 09:44:05 PM
Old 08-21-2013
Hi filosophizer,

I don't think a switch is the answer...

Your config has fallen out of the IBM "supported" / known to work, configuration area.

The DS is simply too old for your OS level - hence the weird results.

IBM System Storage Interoperation Center (SSIC)

AIX 6.1 TL3 was the latest level to officially support the DS4500 and then the DS had to have the latest firmware.

From AIX 6.1 TL4 the DS native (MPIO / RDAC) support changed to only support the newer generation of DS storage.

You might try switching from MPIO/APPCM back to RDAC/fcparray with manage_disk_drivers to see if that will still work - rmdev -Rdl the adapters and make sure the dacs/dars and disks have all gone before bringing them back with a reboot or cfgmgr to bring in the new (old) driver.

Make sure the DS4k5 firmware is the latest, 06.60.xx, before you go any further...

HTH
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AAC(4)							   BSD Kernel Interfaces Manual 						    AAC(4)

NAME
aac -- Adaptec AdvancedRAID Controller driver SYNOPSIS
aac* at pci? dev ? function ? ld* at aac? unit ? DESCRIPTION
The aac driver provides support for the Adaptec AAC family of SCSI and SATA RAID controllers. These controllers support RAID 0, 1, 5, 10, and volume sets. They have four channels in the add-in version or 1-2 channels in the motherboard integrated version, and are most often found rebadged by Dell, Hewlett-Packard or IBM. Supported controllers include: o Adaptec AAC-364 o Adaptec SCSI RAID 2120S o Adaptec SCSI RAID 2200S o Adaptec SATA RAID 2410SA o Adaptec SATA RAID 3405 o Adaptec SCSI RAID 5400S o Dell PERC 2/Si o Dell PERC 2/QC o Dell PERC 3/Di o Dell PERC 3/Si o Dell PERC 320/DC o Dell CERC SATA RAID 1.5/6ch o HP NetRAID 4M o HP ML110 G2 (Adaptec SATA RAID 2610SA) o IBM ServeRAID 8k Access to RAID containers is available via the ld device driver. Individual drives cannot be accessed unless they are part of a container or volume set, and non-fixed disks cannot be accessed. Containers can be configured by using the on-board BIOS utility of the card. DIAGNOSTICS
The adapter can send status and alert messages asynchronously to the driver. These messages are printed on the system console. SEE ALSO
intro(4), ld(4) HISTORY
The aac driver first appeared in NetBSD 1.6, and was based on the FreeBSD driver of the same name. BUGS
This driver is not compatible with controllers that have version 1.x firmware. The firmware version is the same as the kernel version printed in the BIOS POST and driver attach messages. BSD
February 19, 2011 BSD
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