ST2540 and VxDMP

Hi:
I've a customer with the following config:
V880 with 2 x F/C controller
ST2540 with 2 x controller
Solaris 10 U4
EIS DVD April 09
Storage Foundation 5.0 patched with EIS DVD April 09
For one reason or another, mpxio was not used. I created a 2540 volume and presented to the server and use VxVM to create vxfs volumes without any problem. However, when I do a 'mkfile 100g a', and running iostat on another window, I can see that the io is running through the 2 paths c9 and c11, at the same time plenty of write errors appear in the messages file.
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.warning] WARNING: /pci@9,600000/
SUNW,qlc@1,1/fp@0,0/ssd@w202500a0b86731c0,0 (ssd18):
Jul 6 12:06:01 xxxxxx041 Error for Command: write(10) Error
Level: Retryable
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] Requested Block:
64199456 Error Block: 0
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] Vendor: SUN
Serial Number:
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] Sense Key: Abort
ed Command
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] ASC: 0x0 (no add
itional sense info), ASCQ: 0x0, FRU: 0x0
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.warning] WARNING: /pci@9,600000/
SUNW,qlc@1,1/fp@0,0/ssd@w202500a0b86731c0,0 (ssd18):
Jul 6 12:06:01 xxxxxx041 Error for Command: write(10) Error
Level: Retryable
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] Requested Block:
64201504 Error Block: 0
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] Vendor: SUN
Serial Number:
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] Sense Key: Abort
ed Command
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] ASC: 0x0 (no add
itional sense info), ASCQ: 0x0, FRU: 0x0
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.warning] WARNING: /pci@9,600000/
SUNW,qlc@1,1/fp@0,0/ssd@w202500a0b86731c0,0 (ssd18):
Jul 6 12:06:01 xxxxxx041 Error for Command: write(10) Error
Level: Retryable
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] Requested Block:
64189216 Error Block: 0
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] Vendor: SUN
Serial Number:
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] Sense Key: Abort
ed Command
Jul 6 12:06:01 xxxxxx041 scsi: [ID 107833 kern.notice] ASC: 0x0 (no add
itional sense info), ASCQ: 0x0, FRU: 0x0
I face this problem before and turn on mpxio to 'solve' the problem. I've set in the CAM software the host type as "Solaris with Veritas DMP". I can't find any ASL for 2540 either. I've tried with vxfs and ufs, both giving the same results. To get rid of the gazillion retryable write error I have to set one of the path to standby! But occasionally the write errors will appear on console when the system boots up. Is there a fix for this or must I use mpxio? Thanks a lot in advance.
regards,
BSF

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