Robin Gill's questions

I have a 32Tb NTFS RAID 5 volume. 5x8tb SATA, LSI 9361i+Supercap.

Was working fine until it started behaving strange on day - drive name vanished and data seemed to vanish. Then rebooted, Windows 10, wanted to do a check when booting but I skipped it. Data seemed to be there, but then after reboots, windows just crashes.

If I disconnect the drives Windows boots fine, then if I hot plug them and import the foreign configuration, Windows crashes in a few seconds. I booted into a Linux live CD, that almost boots but crashes.

Any ideas how I can access this volume to try and recover data if just mounting it crashes in Windows and Linux?

OS is just Windows 10 because I have not finished properly setting up the server. I migrated data from old server to this and never got round to installing Server 2019. The linux distro is actually an older Acronis Live CD.

I disconnected one drive from the RAID and plugged in another drive, RAID controller is happy to rebuild the volume, so it seems like file system corruption rather than a hardware issue.

I've moved drives around to check it's not a backplane fault. I also have 6x8tb SATA set up as RAID 6 which are working fine which seems to rule out all hardware issues.

Yes I know how stupid I've been and will severely chastise myself once this has been resolved.

Just to be clear, I've done a robocopy using the /mir switch and files not present in the source have been deleted from the destination - this was not desired.

I have an exact list of files that have gone, but I have no idea how to get them back.

Unfortunately the source drive was a Linksys EFG80 and the target was a Netgear Stora so I cannot remove the drive(s) and use common recovery utilities as both the units are using some unknown form of RAID.

I would restore from backup, and I believe there is a full backup but due to staffing issues I cannot get the credentials until next week but I could do with restoring this asap before users get in tomorrow.

Bascially I've followed the Microsoft guide on SBS 2003 -> 2011 Migration. Performed it over the weekend to try and give zero downtime for users. It's pretty much worked fine except this issue. (I haven't imported the users into 2011 console/format yet but everything else complete)

This morning users reported a few recently added items to the shared calendar had vanished.

I still have the old version of companyweb on the old SBS 2003 (although it is not the original version, but the updated version on Sharepoint Services 3.0 as part of the migration).

Looking at the old version, I can see many entries missing on the new version. The bit that initally threw me was that all the entries that showed were by two users while all entries by the other users had vanished. However I eventually found one holiday entry spanning a few days that showed from a user where all her other entries had vanished.

Also from that I checked permissions across users and could not find any reason for differences.

After further investigation I noticed on the new Sharepoint, if I selected the All Events or Current Events view for the calendar, I could see all the calendar events - i.e. the missing ones returned.

I also tried enabling search on the site and then searching for one of the "missing" events. If I did this it finds it, but interestingly it also finds it on the correct page of the calendar, but if I select this it takes me to the calendar page without the event.

Health Analyser only moans that Databases exist on servers running Sharepoint Foundation and Built-in accounts are used as application pool or service identities.

The database schema versions appear to have correctly updated:

Database Schema Versions

Microsoft.SharePoint.Upgrade.SPContentDatabaseSequence Current Schema Version: 4.0.145.0, Maximum Schema Version: 4.0.145.0

Microsoft.SharePoint.Upgrade.SPContentDatabaseSequence2 Current Schema Version: 4.0.8.0, Maximum Schema Version: 4.0.8.0

Microsoft.SharePoint.Administration.SPContentDatabase Current Schema Version: 14.0.4762.1000, Maximum Schema Version: 14.0.4762.1000

Any help on this would be very greatfully appreciated.

This is my first question on here so if it does need any altering I would be grateful for help/constructive criticism.

Edit: Downloaded a copy of sharepoint designer, using this to look at the shared diary, all the "missing" entries are present!