Host-based backup of VMware vSphere VMs.
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lowlander
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expected health check performance on StoreOnce CIFS

Post by lowlander »

Hi,

what is the expected health check performance (network related) regarding a storeonce CIFS repository ? We currently use a dedicated gateway server with 10GBE networking to the StoreOnce. Monitoring the healthcheck process we see network traffic read and write from gateway server to CIFS repository on the StoreOnce only performing 100 MBps for both read and write. Are these values as expected with Veeam, or should it possible to have higher values (regarding 10GBE we expect 500 MBps).

Currently a health check takes a long time while we have a big repository.

thanks !
Vitaliy S.
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Re: expected health check performance on StoreOnce CIFS

Post by Vitaliy S. »

Hi,

I don't think that we have any network throttling for the health check job built-in. Do you have any other repository to check the same stats?

Thanks!
foggy
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Re: expected health check performance on StoreOnce CIFS

Post by foggy »

I'd pay more attention at what the storage itself can provide in terms of the read speed, since this is more important than the network here. 100 MB/s is not that bad, you could probably get a bit more with per-VM chains and less fragmented backup files. And you do not have Catalyst, right?
lowlander
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Re: expected health check performance on StoreOnce CIFS

Post by lowlander »

Hi,

sorry for the late respoinse. We indeed have also have Catalyst configured, where housekeeping performs @500MBps

regarding the CIFS share I presented a share to the gateway server today, and did a speed check on writing : copy some large files resulted in 300 MBps. I wonder if the health check is capping the speed @100MBps when using CIFS. Any idea if this is CIFS/Veeam related for the health check ? write and read performance of the storeonce device seems to be ok, when watching the numbers :)

thanks !
foggy
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Re: expected health check performance on StoreOnce CIFS

Post by foggy »

I would not compare simple file copy with the health check, since the latter requires data re-hydration (to calculate the check sums of the stored data and compare them with the previously stored ones).
gdavid16
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Re: expected health check performance on StoreOnce CIFS

Post by gdavid16 »

@lowlander, on your catalyst how many VMs are you backing up at once? any encryption?
my assumption is that you are correct about performance for CIFS if the disk can handle 500MBps over catalyst. can you describe your network setup? 10GB ports, Jumbo Frames/MTU Size?, same vlan/network?
lowlander
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Re: expected health check performance on StoreOnce CIFS

Post by lowlander »

Hi, we have a 10GBE connection teamed, able to connect to a Storeonce configured with 1x 10GBE LACP. Keep in mind Storeonce catalyst is configured for FC, 2x 8Gbps.

We backup 100 vms configured in a backup job to catalyst, with a corresponding copy job to CIFS. No use of encryption.

All backup infrastructure components are configured in the same network/VLAN. No use needed for Jumbo frames, in our opinion.


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pbarrette
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Re: expected health check performance on StoreOnce CIFS

Post by pbarrette »

Hi Lowlander,

Do you have SMB signing turned on?
[HKLM\System\CurrentControlSet\Services\LanmanWorkstation\Parameters]
"RequireSecuritySignature" REG_DWORD = 0x00000001

We found that requiring SMB signing caused a 75% reduction in performance on our StoreOnce 4500.
Additionally, we have a ticket in with HP due to the CIFS connection randomly dropping out entirely when SMB signing is turned on and the software is updated to 3.13.2 or higher.

With SMB signing turned off, we are able to routinely hit speeds closer to 200 to 300 MB/s with the limits usually being the data source.
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