On Sep 1, 2014, at 5:38pm, Harald Barth <[email protected]> wrote:

> 
>> $ vos examine html.milicchio
>> Could not fetch the information about volume 536871913 from the server
>> : No such device
>> Volume does not exist on server aux.dia.uniroma3.it as indicated by the VLDB
> 


Thanks for the pointers Harald.

I synced and put online the volumes, run salvage, and now I’m restoring the 
volume from a backup one. However, it’s been several hours and I don’t know if 
vos restore works.

Is it possible to inspect vos while working?


> If you do a vos listvol against aux.dia.uniroma3.it you see that you
> 
> a) only have html.milicchio.backup but not html.milicchio any more.


Yes, I have all my volumes online (wins and mail are not used now), except for 
the html.milicchio one.

$ vos listvol aux|grep milicchio
html.milicchio.backup             536871915 BK    2401123 K On-line
mail.milicchio                    536871916 RW          2 K Off-line
mail.milicchio.backup             536871918 BK          2 K Off-line
user.milicchio                    536870927 RW    3707159 K On-line
user.milicchio.backup             536870929 BK   28684591 K Off-line
wins.milicchio                    536872442 RW          2 K Off-line
wins.milicchio.backup             536872444 BK          2 K Off-line


> 
> b) have a lot of volumes in the offline state on that server


Yes, I have more than 100 volumes with home dirs offline.


> 
> Did the server run any salvage and is there anything in the log about the 
> outcome?


Right now I am unable to go into the server room. Tomorrow I’ll check the logs 
(no ssh on db servers policy).


> 
> If you have any backupvolumes that are online, you can vos dump them, vos 
> restore
> them to another server (preferably first under another name) and check the 
> contents
> out. Especially if you do not have any backup on another media of the 
> contents.

No media unfortunatelt, I just have backup volumes. But as I said, vos restore 
is running since 3.30pm~, I think it’s stuck, even though the volume is several 
GB. I will let the job run all the night.


> 
> vos listvol <servername> | grep <volid>
> 
> will give you what the server thinks is there
> 
> vos listvldb -name <volid> 
> 
> will give you what the DB thinks is there
> 
> vos exa <volid>
> 
> gives you some combined of the two above (if available).

The server and vldb seem to be out of sync (although I synced them!). As you 
suggested before, I don’t have the volume anymore.


$ vos listvldb html.milicchio

html.milicchio 
    RWrite: 536871913     Backup: 536871915 
    number of sites -> 1
       server aux.dia.uniroma3.it partition /vicepa RW Site 


$ vos listvol aux a |grep html.milicchio
html.milicchio.backup             536871915 BK    2401123 K On-line

$ vos examine html.milicchio
Could not fetch the information about volume 536871913 from the server
: No such device
Volume does not exist on server aux.dia.uniroma3.it as indicated by the VLDB

Dump only information from VLDB

html.milicchio 
    RWrite: 536871913     Backup: 536871915 
    number of sites -> 1
       server aux.dia.uniroma3.it partition /vicepa RW Site 

$ vos examine html.milicchio.backup
html.milicchio.backup             536871915 BK    2401123 K  On-line
    aux.dia.uniroma3.it /vicepa 
    RWrite  536871913 ROnly          0 Backup  536871915 
    MaxQuota  100000000 K 
    Creation    Thu Aug 28 01:00:05 2014
    Copy        Thu Aug 28 01:00:05 2014
    Backup      Thu Aug 28 01:00:05 2014
    Last Access Mon Sep  1 15:28:07 2014
    Last Update Wed Aug 27 19:23:40 2014
    40241 accesses in the past day (i.e., vnode references)

    RWrite: 536871913     Backup: 536871915 
    number of sites -> 1
       server aux.dia.uniroma3.it partition /vicepa RW Site 


First thing tomorrow I will check the log files.

If the restore fails or is still stuck tomorrow, should I try just mounting the 
backup volume and zap all references of html.milicchio? That would mean also 
losing 100++ volumes…


Well, I hope to restore my data, any hint is appreciated :)

Cheers,
        Franco

-- 
Franco Milicchio <[email protected]>

DIA - Dept. of Engineering
University Roma Tre
http://plm.dia.uniroma3.it/milicchio/

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