NON-STOP.... stops [problem or cautionary tale; not sure which]

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truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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I'm new to ATIH12 but want very much to use the non-stop capability to provide a live timeline backup to my NAS.

I have a work area RAID (4TB) that I have set up to NON-STOP to a 5TB NAS (connected via dial GBe). There is 850GB of active data to backup.

The problem is, the backup has restarted 6 times now - without completing. (Although with a caveat - see final paras).

Watching the destination folder and process explorer together shows a repeated story. The afcdposrv (NON-STOP) service starts transferring files once they are locked / queued - and I get health data transfer rates averaging 75MB/S to the NAS. The Timeline Explorer destination folder set up by NON-STOP shows a series of cdpNNN.data files being created - each of exactly 1GB. At some random amount complete the NON-STOP service aborts and restarts from the beginning.

Tracking this on process explorer shows private memory allocated to the NON-STOP service increasing in a combination of small and larger increments. There's a big jump at some point from around 160MB to ~350MB - and all works well. Then there is a jump of private memory allocated to 1.6GB. At this point the service process always stops.

Data transferred on the last 5 restarts were 88GB, 66GB, 123GB, 71GB and finally 142GB on last restart. On this basis it would appear I would never complete a backup.

On the last (6th) restart however, the behaviour changed at the cdp126.data file creation point. It was 1GB exactly - all subsequent files much smaller - ranging between 120MB to around 300MB. Most interestingly the private memory allocated to the service has locked at 257.4MB and I'm up to cdp254.data (probably about 200GB transferred). So *fingers crossed* this process will complete.

But I would like to know from the forum: Is this behaviour of NON-STOP normal or is there an underlying problem here?

It will be some time until I now whether the process will now complete and I will report accordingly. But it seems to me a backup product should not go through 6 restarts before it operates correctly. It sort of feels like there is some heuristic in the backup software that is adjusting file size / memory requirements based on how many times it has failed disgracefully. Not elegant. If there are any Acronis engineering guys monitoring this - insight would be appreciated.

cheers

Rod in Australia

Mon, 10/10/2011 - 06:06
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7th fail / restart just happened. Memory used by the NON-STOP service again jumped to 1.6GB and the service stopped.

I also now see that all the files that I thought were smaller that 1GB were in fact 1GB exactly - so the backup got up to 320GB. (File size discrepancy was probably because I was not actively refreshing the NAS folder view in explorer, just letting it auto update on content change. Probably some 'feature' of windows).

Monitoring the destination folder, I see we've back to updating files from cdp45.data - i.e. 280GB of the previously and presumably successfully written data is being written again.

Needless to say  - Aaaaaaargh! This is NOT how software is supposed to work. (well to be accurate, of course this is a description of software not working)

Rod

p.s. I have submitted a ticket but am getting no response from support so thought I'd share experience / seek input in the forum in the home some has some decent insight as to what the hell is going on here...

Mon, 10/10/2011 - 06:28
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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Is it working ? Who knows?

ATIH12 dashboard says 290GB of backup on NAS. Going to recover console says it has backed up 820GB. Now a huge proportion of this data is raw image files - so I am sceptical that ATIH12 has compressed the source data by that much. Backups of the volume with Norton Ghost come in at about 800GB compressed and with ATIH12 using it as an image backup (i.e. standard backup compression) the same volume comes to 820GB... (ATIH12 reports it as 803GB)

So something is definitely not adding up... But other than going through file by file to find out where there is the mismatch, not sure how to validate the NON-STOP backup... As it stands I cannot trust it has backed everything up at all... BTW there were no exclusions

Any clues from the Forum on how to interpret this idiosyncratic performance? How can I trust my data is there?

cheers

Rod

p.s. the recovery browser has quite a neat idea - a screen image snapshot at the time of the backup. Trouble is, all of my snapshots are blank. i.e have label "Screenshot is not available for this backup version". More bug or "feature?

Mon, 10/10/2011 - 10:48
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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==> Then there is a jump of private memory allocated to 1.6GB. At this point the service process always stops.

It's been 15 years since I pounded code, but 1.6G is 'about' the upper range for heap allocation [extended memory used to store temp blocks/pages of data] in 32bit apps -- basically like the max amount of gas in the tank. The app may not be managing heap correctly and locking-up -- kind of like either running out of gas or needing more gas than can fit in the tank. Sorry for the poor analogy.

==> How can I trust my data is there
Only way would be to do a restore and test it. With 2012 in its present state, I would not 'trust' anything

Mon, 10/10/2011 - 13:09
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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Thanks for your post and indeed this was exactly my suspicion!!!!

I completely cleared and restarted the NONSTOP backup - this time using a net logger as suggested by support. It fails repeatedly. And is currently sitting on "1% - 36 days to go". which is bullsh1t...

So I have cleared the backup job and given up until support comes through with something sensible.

aaaaaaargh. $ for nothing...

Mon, 10/10/2011 - 21:25
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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Roderick,

How are you accessing your NAS - via mapped drive or UNC?

What brand NAS are you using? There are problems with certain models of Q-NAP

Are you able to make a standard image to the NAS without interrruption?

Have you raised a support ticket with Acronis, posting here doesn't guarantee an Acronis response as these are user forums rather than the actual support forum.

Tue, 10/11/2011 - 07:02
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truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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Thanks for the input Colin

I'm mapping via UNC with a IP root i.e. \\192.168.1.100\foldername

I am using other backup software to do imaging and it works fine to the NAS, it is a Thecus N4200PRO - seems to be fast and reliable.

I have raised a ticked with Acronis and sent them copious log material (including using winshark on the network) - but have no response as yet to the information dump.

I posted here to see if anyone else was experiencing similar problems - and had a fix. And to share experience if someone else comes searching for a fix (if there is one appear for this)...

cheers

Rod

Tue, 10/11/2011 - 08:47
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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I have a similar situation.

After upgrading to 2012, I deleted my old Nonstop Backup set and started a new one from scratch.

I want to back up 2 folders totalling 600GB and 440K files. These are media files that I edit (mp3 tag change for instance) causing slight file changes that are better backed up by Nonstop than by File Backup, since Nonstop only records the changes and not the full file everytime a minor change occurs.

The problem is that Nonstop hangs while processing, with its tray icon showing an "x" symbol and saying that it has "stopped". It is however frozen and only normalizes after a reboot, when it resumes but taking several hours before start copying anything (I think veryfying the incomplete backup and figuring out where to resume from) and freezes again in this process.

I tried deleting the incomplete backup and starting from zero but the pattern repeats itself. I tried disabling anti-virus/firewall but no change.

It seems like it is overflowing with the amount of data it is trying to process, rendering Nonstop useless.

I have not been able to verify if the 1.6GB memory threshold is hitting here, but will try to check as I am trying again for the XXXth time.

I am backing up to an internal hard disk dedicated to backup, not to NAS.

Tue, 10/25/2011 - 00:46
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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Just finished another attempt. Nonstop resumed from previous boot and ran for 3 hours. When it was just 3 minutes to finish, it hanged again ("Acronis Nonstop Backup Service has stopped").

Checking on Sysinternals Process Explorer reveals that peak Working Set Size was 339MB.

Checked Acronis event code and it reports "0x00E40021+0x0000FFF0+0x800706BA". No idea what is going on but I suspect some overflow of some type. Very frustrating as each try requires a lenghty several hours long run.

I check the windows services under Computer Management and verified that the Nonstop Backup Service was down. I started it, only to see the nonstop backup process resume from step zero again. Sysinternals Process Monitor shows afcdpsrv.exe parsing sequentially through each backup file (cdp???.data), probably to determine where to resume from following the crash. Time left: 6 days 16 hours 56 minutes.

Another night lost with this buggy software.

Tue, 10/25/2011 - 02:30
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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This really is a piece of crap. It happens to me all the time. I've found the only way to proceed is to remove all the backups and the entries, reformat the disk, reboot and start all over!

I'm going to remove Acronis from my system and fall back to something else. This is incredibly crappy software!

Chuck Wegrzyn

Sat, 12/03/2011 - 20:32