David_Wallis

3x Compaq RA4100 (circa 1TB iirc)
1x Compaq MSL5026
1x Compaq MDR (FC - SCSI Bridge)
2x Compaq 8 port FC hubs

Backup speed was circa 700mb per min.

Now since getting the following in BE's Log..
----------------------------------------------------------------------

Media Name: "Media created 29/11/2003 21:30:03 "
Backup of "Q: Quorum"
Backup set #2 on storage media #1
Backup set description: "Default Backup"
Backup Type: FULL - Back Up Files - Reset Archive Bit
Backup started on 29/11/2003 at 22:50:57 .
File "quolog.log" in use - Backed up.

Backup completed on 29/11/2003 at 22:52:19 .
Backed up 1042 files in 236 directories.
1 file was in use
Processed 1,137,059,016 bytes in 1 minute and 22 seconds.
Throughput rate: 793.5 MB/min
----------------------------------------------------------------------

Media Name: "Media created 29/11/2003 21:30:03 "
Backup of "Z: Data"
Backup set #3 on storage media #1
Backup set description: "Default Backup"
Backup Type: FULL - Back Up Files - Reset Archive Bit
Backup started on 29/11/2003 at 22:52:30 .

Drive and media information from media mount:
Robotic Library Name: COMPAQ MSL5026
Drive Name: COMPAQ SDLT100
Slot: 18
Media GUID: {ED1E7AE5-03AB-4D8C-AD6E-E511124639A0}
Media Label: GIV200
Overwrite Protection Time Left: 3 Weeks
Append Time Left: 3 Weeks
Targeted Media Set Name: Weekend Tapes
Backup set #3 on storage media #2

Drive and media information from media mount:
Robotic Library Name: COMPAQ MSL5026
Drive Name: COMPAQ SDLT100
Slot: 19
Media GUID: {8C8A35BD-8646-4A55-8E50-E82437A00346}
Media Label: GIV215
Overwrite Protection Time Left: 3 Weeks
Append Time Left: 3 Weeks
Targeted Media Set Name: Weekend Tapes
Backup set #3 on storage media #3

Storage device "COMPAQ SDLT100" reported an error on a request to write data to media.

Error reported:
The request could not be performed because of an I/O device error.

^ ^ ^ ^ ^

I get circa 253mb/min throughput.. and backups fail to finish..

Ive also had the following in the event log.. (not at the same time)

Application popup: Windows - Delayed Write Failed : Windows was unable to save all the data for the file \Device\HarddiskVolume23\$Mft. The data has been lost. This error may be caused by a failure of your computer hardware or network connection. Please try to save this file elsewhere.

How do I find volume23?? No drives are showing errors.. the array appears healthy.. and ACU shows nothing.. neither does secure path etc..

ideas??

I may have to try a reboot.. on a cluster

David

druddle

Check the state of your FC HBAs on the server. Are you using multipathing ? If so, if you have one flaky HBA it shouldnt make a difference. If not then you could have a flaky HBA causing problems.

Check your SAN (dunno if Compaq/HP use Brocade/Macdata/Gadzoox/whatever) switches, but use the tools (command line or web based) to check the health of the SAN. Could throw up a cable or HBA error.

I guess youve checked the media, drive for errors. Theres not alot to check on the FC/SCSI bridges (we used ADIC/IBM badged ones), again the config tools via the serial port is a start.

Once you have established the hardware is good, then you know where you stand.

Edit - do backups go over the SAN direct, or via a storage node over the LAN ?

Dave

[Edited by druddle - 12/5/2003 12:36:32 PM]

David_Wallis

backup via a node..

fairly sure the HBA's are Ok.. I may manually fail them over mid backup..

David

David_Wallis

cough

druddle

Have you looked for network problems ? Try the switch logs and see if theres a clue in the times in there.

David_Wallis

Nothing both FC switches look fine and dont have anything showing in them..

Im going into work tonight so may rebooting everything including the switches.

tonybooth

Rebooting the cluster is a good idea as on boot the server will display any disk failures or problem which is what I believe it is

Is the quorum resource on a separate disk to the other data volumes , if not it should be.

Cheers

TONY

David_Wallis

my insight server has died so rebuilding that...

However,

it seems that I may have to power the MSL up, then The MDR then the san nodes...

I think its a disk failure too..

I am doing it a 22:00 tonight..

trying to find information on configuring the MDR etc... and not finding much..

David

gregh

tried ringing HP support Dave? don't you get 3 year warranty with that stuff?

David_Wallis

not yet..

Hello.. HP Support..

Yeah erm.. we havent had a backup for a week and its running slow...

Ok.. have you rebooted...

erm no.

give us a call when youve rebooted

Ok

gregh

so tell 'em you've re-booted

greg

David_Wallis

Well Im off to work soon so will kick backup off hoing whilst Im there..

David_Wallis

im off to work now..

David_Wallis

leaving work now..

Overtime

David_Wallis

on phone to hp...