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Veeam backup taken too long - due to disk read very slow.

Posted on 2016-08-15
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Last Modified: 2016-11-09
We are seeking Veeam backup taken too long for couple of servers - due to very slow disk read.

Any advise welcome.

Server Info
backup progress
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Question by:Michael Logic
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by:Andrew Hancock (VMware vExpert / EE MVE)
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is this the first time, it's been backed up ?

purchase a faster disk subsystem ?

what is the datastore ?
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by:Michael Logic
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Hi Andrew,

it has been doing this for some time and before I got involved.

We have around 51 VMs total and about 4VMs experiencing slow backup.

Storage is Dell EqualLogic and EMC - VM in question is on Dell EqualLogic. Non-SSD

VM is on Datastore1

datastore.png
datastore2.png
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by:Andrew Hancock (VMware vExpert / EE MVE)
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but are these slow, because they are large ?
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by:Michael Logic
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please see report - is not consistent - size does not matter.

Name       Status     Start time  End time   Size        Read       TransferredDuration    Details

VM13363    Success       21:01:52   21:06:27 50.0 GB     217.0 MB   55.1 MB       00:04:35



VM14409    Success       21:01:52   21:08:35 100.0 GB    1.6 GB     727.9 MB      00:06:42



VM14411    Success       21:06:03   21:10:47 50.0 GB     1.6 GB     848.5 MB      00:04:44



VM14412    Success       21:06:08   21:10:48 50.0 GB     1.6 GB     861.3 MB      00:04:39



VM14435    Success       21:06:40   21:12:05 50.0 GB     1.9 GB     1.1 GB        00:05:24



VM14410    Success       21:06:20   21:11:40 150.0 GB    2.4 GB     1.1 GB        00:05:20



VM14402    Success       21:09:06   21:11:41 100.0 GB    273.0 MB   57.1 MB       00:02:34



VM14399    Success       21:10:53   21:15:51 50.0 GB     1.5 GB     661.9 MB      00:04:57



VM14401    Success       21:11:14   21:16:09 100.0 GB    1.7 GB     657.1 MB      00:04:55



VM14400    Success       21:13:43   21:21:31 50.0 GB     1.4 GB     661.2 MB      00:07:48



VM14403    Success       21:13:59   21:29:52 400.0 GB    10.4 GB    2.0 GB        00:15:52



VM14405    Success       21:06:56   21:36:31 150.0 GB    29.5 GB    18.6 GB       00:29:35



VM16472    Success       21:07:37   21:09:54 100.0 GB    296.0 MB   102.4 MB      00:02:17



VM13365    Success       21:08:35   21:11:12 100.0 GB    219.0 MB   35.1 MB       00:02:37



VM11304    Success       21:09:55   21:14:27 50.0 GB     747.0 MB   302.3 MB      00:04:32



VM09222    Success       21:09:55   23:50:12 150.0 GB    145.5 GB   7.4 GB        02:40:16



VM13352    Success       21:10:22   21:17:44 50.0 GB     1.3 GB     488.8 MB      00:07:22



VM13383    Success       21:16:33   23:19:26 400.0 GB   43.8 GB     11.0 GB       02:02:53



VM13385    Success       21:10:42   21:18:03 50.0 GB     1.4 GB     603.7 MB      00:07:20



VM13382    Success       21:10:48   21:14:46 100.0 GB    1.1 GB     535.2 MB      00:03:58



VM13381    Success       21:15:11   21:19:46 100.0 GB    1.9 GB     778.6 MB      00:04:34



VM13384    Success       21:18:06   21:23:53 50.0 GB     1.4 GB     638.1 MB      00:05:47



VM10272    Success       21:18:58 00:30:06 (+1)100.0 GB 96.5 GB     50.5 MB       03:11:07



VM15464    Success       21:20:47   21:25:07 50.0 GB    829.0 MB    468.6 MB      00:04:19



VM13374    Success       21:22:25   21:30:01 50.0 GB     2.2 GB     1.1 GB        00:07:35



VM14433    Success       21:23:08   21:29:23 50.0 GB     1.4 GB     687.6 MB      00:06:15



VM14434    Success       21:24:20   21:28:53 50.0 GB     1.4 GB     718.7 MB      00:04:33



VM13370    Success       21:25:19   21:30:51 50.0 GB     1.3 GB     691.6 MB      00:05:31



VM13375    Success       21:27:59 01:36:23 (+1)555.0 GB  142.1 GB   31.5 GB       04:08:24



VM15443    Success       21:29:16   21:32:32 50.0 GB     785.0 MB   186.1 MB      00:03:15



VM13371    Success       21:28:41   21:33:07 50.0 GB     1.3 GB     585.2 MB      00:04:26



VM13372    Success       21:30:14   21:34:03 50.0 GB     1.2 GB     556.0 MB      00:03:48



VM13373    Success       21:31:07   21:35:31 50.0 GB     1.5 GB     677.4 MB      00:04:23



VM13355    Success       21:31:43   21:34:21 50.0 GB     500.0 MB   83.2 MB       00:02:37



VM11299    Success       21:31:53   21:52:41 100.0 GB    10.1 GB    7.7 GB        00:20:47



VM15439    Success       21:32:19   21:36:11 50.0 GB     1.1 GB     403.1 MB      00:03:52



VM14397    Success       21:33:26   21:35:34 100.0 GB    336.0 MB   80.0 MB       00:02:08



VM09227    Success       21:36:13   22:22:36 50.0 GB    44.0 GB     69.3 MB       00:46:22



VM14398    Success       21:40:55   21:43:15 100.0 GB    248.0 MB   67.5 MB       00:02:19



VM14407    Success       21:43:19   21:45:35 150.0 GB    307.0 MB   84.0 MB       00:02:15



VM09235    Success       21:33:47   22:58:24 105.0 GB    101.0 GB   127.2 MB      01:24:36


----------------------- Page 2-----------------------

VM13387   Success       21:34:54   21:41:50 200.0 GB   4.5 GB     2.0 GB        00:06:55
48-VMs-report.txt
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by:Andrew Hancock (VMware vExpert / EE MVE)
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are all VMs are the same datastore ?

same SAN ?

what if you backup the VM, on it's own, and not along side others ?
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by:Michael Logic
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are all VMs are the same datastore ?

just looking at long jobs.

VM14405 - EMC DS4
VM13383 - EMC DS1
VM10272 - EMC DS4
VM13375 - Dell  DS1
VM09235 - EMC DS2
 
 same SAN ? see Above

 what if you backup the VM, on it's own, and not along side others ?

All done in one policy - I am reviewing this (was done by my predecessor - not good practice)

I have started to split this per server and types.
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by:Andrew Hancock (VMware vExpert / EE MVE)
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Yes, that's what I'm saying run a test backup of these VMs are their own.

looks like datastore contention.
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by:Gerald Connolly
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How is the SAN connected?

Those numbers seem very suspiciously rounded! 10MB/s & 5MB/s
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by:Andrew Hancock (VMware vExpert / EE MVE)
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do you require any further assistance to close out this question.
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by:Michael Logic
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Hi Andrew and Gerald,

got slight sidetracked last two weeks.

EMC is Fibre and Dell currently iScsi.
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by:Andrew Hancock (VMware vExpert / EE MVE)
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run the job for a single VM, what is the speed ?

when no other jobs are running
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Michael Logic earned 0 total points
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Ok - I am looking to splitting job into smaller jobs and what I am seeing here is one policy backing up AD/SQL etc  without taking into account - application aware or indexing.
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by:Michael Logic
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good now
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