SSP not updating (MSA1500)

[wickinaz]

Hi,
I'm versatile with the MSA1500 and I have carved out my LUNS and assigned SSP for the various systems accessing these LUNS. In a particular LUN which is accessed by 3 window systems, when a file is uploaded to this shared storage, the other 2 windows system does not see the new file posted. Only the system where I initiated the copy.

Has anyone experienced this problem?

The MSA is currently at the 7.0 firmware.

Thanks!

[Uwe Zessin]

It is not a 'problem' in the MSA1000 and has nothing to do with SSP as the MSA just serves data blocks and not files.

The 'problem' is that the Windows file system implementation (NTFS) does not support shared access of multiple servers - it expects exclusive access. As soon as the second server mounts the volume, you have started to corrupt the data! Please stop any further experiments if the data is important!!

What you need is a shared file system implementation like HP's PolyServe.

[Amar_Joshi]

Uwe is right, you are heading towards a big data corruption problem. If you want to share the drive(LUN) to more than one server, you should mount it on primary server and then use Windows Share to all access to others. Else you have so many industry standard solutions available like NFS, Samba, iSCSI, NAS etc.

[Amar_Joshi]

Just by looking at subject, SSP stands for Selective Storage Presentation but can be misinterpreted as Shared Storage Presentation. Hope you are not thinking it that way....

;)

[wickinaz]

All,
Thanks for the quick response.

I went ahead and removed the SSP from those window systems, except for one.
I'm currently copying over the files to another LUN as a backup.
Afterwhich, I will upgrade the server to W2K3 R2 in order to use NFS.

When I spoke to an HP support person awhile back, it was never mentioned that I couldn't present a store to multiple Windows NTFS systems, but you couldn't present this to a LINUX or other OS platforms.

HOpefully, I haven't done much damage to my data.

I fell into this role as the SAN keeper - so I guess you learn by your mistakes without the proper training. :)

Again, thanks for the quick response.


Judy

[wickinaz]

Solution provided by forum team members.