Re: Errors during shadow set merge

tadamsmar wrote:
On Feb 18, 11:17 pm, Michael Austin <maus...@xxxxxxxxxxxxxxxxxx>
wrote:
tadamsmarwrote:
On Feb 18, 5:00 pm, "Richard B. Gilbert" <rgilber...@xxxxxxxxxxx>
wrote:
tadamsmarwrote:
I noticed I was getting errors when adding a member to a shadow
set.
I have been getting errors during shadow set merges since I bought
this refurb DS10.
Got 109 error today when I remerged after doing an image. 16 errors
on DKA0 and 93 on DKA100.
What do you think is causing this?
Are these soft errors?
Here is the log for one:
**** V3.4 ********************* ENTRY 1667
********************************
Logging OS 1. OpenVMS
System Architecture 2. Alpha
OS version V7.3-2
Event sequence number 11474.
Timestamp of occurrence 18-FEB-2008 09:52:48
Time since reboot 77 Day(s) 1:23:46
Host name EESD
System Model AlphaServer DS10 617 MHz
Entry Type 1. Device Error
---- Device Profile ----
Unit $1$DKA0
Product Name ATLAS10K2-TY184L
Vendor QUANTUM
-- Driver Supplied Info -
Device Firmware Revision DA40
VMSSCSIError Type 5. Extended Sense Data from Device
SCSIID x00
SCSILUN x00
SCSISUBLUN x00
Port Status x00000001 NORMAL - normal successful
completion
SCSICommand Opcode x28 Read (10 byte command)
Command Data
x00
x02
x06
x44
x8A
x00
x00
x01
x00
SCSIStatus x02 Check Condition
Remaining Byte Length 18.
--- Device Sense Data ---
Error Code xF0 Current Error
Information Bytes are Valid
Segment # x00
Information Byte 3 x02
Byte 2 x06
Byte 1 x44
Byte 0 x8A LBA: x0206448A
Sense Key x03 Medium Error
Additional Sense Length x0A
CMD Specific Info Byte 3 x21
Byte 2 x23
Byte 1 x3E
Byte 0 xD4
ASC & ASCQ x1100 ASC = x0011
ASCQ = x0000
Unrecovered Read Error
FRU Code x00
Sense Key Specific Byte 0 x80 Valid Sense Key Data
Byte 1 x00
Byte 2 xA0
----- Software Info -----
UCB$x_ERTCNT 16. Retries Remaining
UCB$x_ERTMAX 16. Retries Allowable
IRP$Q_IOSB x0000000000000000
UCB$x_STS x08021810 Online
Software Valid
Unload At Dismount
Volume is Valid on the local
node
Unit supports the Extended
Function bit
IRP$L_PID x82640450 Requestor "PID"
IRP$x_BOFF 4416. Byte Page Offset
IRP$x_BCNT 512. Transfer Size In Byte(s)
UCB$x_ERRCNT 32. Errors This Unit
UCB$L_OPCNT 22716780. QIO's This Unit
ORB$L_OWNER x00010004 Owners UIC
UCB$L_DEVCHAR1 x1C4D4008 Directory Structured
File Oriented
Sharable
Available
Mounted
Error Logging
Capable of Input
Capable of Output
Random Access
Is that system under service contract? If so, ask to have the drive
replaced!
I hope you have a recent backup that's readable. If you don't, try to
make one! Right now!!!!
It could be just a single bad block. It could also be all the warning
you are going to get that the disk is failing! Once you hear that "loud
scraping sound" it's all over!!
If you don't have a service contract, order a replacement disk and get a
rush on the delivery!
Meanwhile, keep an eye on the disk. If you get more error messages with
different LBAs it means the situation is deteriorating and you may have
an emergency within a few minutes or hours.- Hide quoted text -
- Show quoted text -
Are these hard or soft errors?
These are generally HARD errors - do what he said and order a disk ASAP.- Hide quoted text -

- Show quoted text -

I am skeptical that its the disks (In my original message, I indicated
that I get errors for both disks)

I have had this problem for a while. I have run:

ANAL/MEDIA/EXER

on the disks and found no errors.

These error bursts only happen when I do a shadow set merge.

I suspect something about the SCSI, or connections, that is stressed
by a merge.

I still suspect the media - and I can back it up with 24 years of reading error logs... can you?

.

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