topic Re: Slow unzip performance, CS700 in Array Performance and Data Protection

Slow unzip performance, CS700

ssaunders69 — Thu, 18 Jun 2015 21:38:00 GMT

Has anyone seen issues with unzipping files on VM's (ESXi 5.5 w/ win 2008R2)? We use NANT to deploy code to all of our servers and it take forever to unzip the files.

Network is fast, we can move large files without an issue.

We do not see the same issue on our other SAN (VNX)

Not sure if this is an OS issue or storage. New VM's that are on the Nimble have same or more CPU/RAM as the ones on the VNX.

Just curious what others have seen.

thanks!

Re: Slow unzip performance, CS700

aherbert23 — Fri, 19 Jun 2015 01:16:29 GMT

Here are a few ideas:

- Is there a virus scanner running that could be scanning the files as they unzip?

- Is disk indexing enabled on the Windows host?

Both of these could cause performance issues when dealing with a lot of little files being created when unzipping.

If these aren't your solution, I would suggest contacting Nimble support. They could help troubleshoot and see if your performance problem is with the storage.

Re: Slow unzip performance, CS700

ssaunders69 — Fri, 19 Jun 2015 02:06:23 GMT

Yeah, sorry I should have said the sys-admin found windows defender running and we killed it. but that only shaved 100 seconds off the total time. Old system does this in about 360 seconds while the new is still over 1000 seconds. I will have them check indexing and see if it is on.

thanks for the reply.

Re: Slow unzip performance, CS700

aherbert23 — Fri, 19 Jun 2015 02:53:51 GMT

Another thing you can tune (and may have been done on the previous system) is to disable 8.3 file naming. This can be a big overhead if there is a large number of files or directories. How to disable 8.3 file name creation on NTFS partitions

Re: Slow unzip performance, CS700

ssaunders69 — Thu, 09 Jul 2015 16:18:09 GMT

Not sure who Kat Usavage is but none of the tips Adam gave me helped (sorry Adam). We are still investigating it. Highly doubt it is a Nimble issue though, as we can unzip a file in Linux in under 5 seconds.

Re: Slow unzip performance, CS700

aherbert23 — Thu, 09 Jul 2015 16:53:39 GMT

No offense taken Shawn! :-) I hope you do find your issue. Have you tried using an unzip tool outside of NANT to see if it suffers from the same performance problem on the Windows hosts?

Re: Slow unzip performance, CS700

ssaunders69 — Thu, 09 Jul 2015 17:05:26 GMT

cool Adam! They tested the built in zip program only. Not sure about any other third party products. Something is different as the same file unzips much faster on our older hardware (server/SAN) using the same program. Think they will have to scan through the GPO settings and see if there is something off. thanks again!