Can you run Chk disk on a SAN volume?

[Alicia Thornhill]

i lost both controllers long enough to loose some data and corrupt others. Is it possible o run Chkdsk on a san Volume, if so how?
any help is appreciated
Thanks!

[Thayanidhi · Accepted solution]

Hi,
Depends on the OS. On windows run scandisk.
(Right click the drive and go to properties -->tools and click check now)

On unix fsck. check the man page of fsck for more details.

Regds
TT

[Alicia Thornhill]

Thank you. Im using win2003 Ent. How do I run chkdsk? command line? i wasnt aware scandisk was an ms utility.

abt

[Uwe Zessin]

Alicia,
if you lost data due to a controller error, then I would not stop after a 'repair' of the volume. CHKDSK can only detect inconsistencies in the file system's structure, but it cannot detect any inconsistencies _within_ data files.

You don't write which controller is involved and how it is set up, but these days many controller work with a 'writeback cache'. That means that it is the controller who decides when to write the data to the physical disk drives.

Unfortunately, this can invalidate all attempts by the file system (careful write ordering) or a database system to keep their data consistent.

[Fabian_Nowee]

chkdsk /f will do the trick, here you can check your FAT/NTFS filesystem.

the /f parameter is an offline parameter. so be carefull when proceding. (it can easily dismount your production volume)

chkdsk without parameters will sometime not detect the problems, or will hang on found errors. best way is to use the /f parameter.