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SCv2080 sequential write throughput?
We are considering adding DAS to existing systems. However while benchmarking current set-up I noticed the sequential write/read throughput was considerably lower than what I expected.
SCv2080 with 82 8TB NLSAS. Volume profile: balanced (RAID10 DM+RAID6). Front end is connected to R730 running CentOS 7.5 with 12Gbps SAS.
To make sure everything is set up correct, I created a new volume and format with XFS per instructions in SC-Series-with-RHEL-7x-Dell-EMC-2018-(CML1071).pdf
I then used iozone commands provided in Dell HPC NFS Storage Solution WP.pdf and I was getting merely 600MBytes/s, with 82 spindles. That sounds nowhere near normal to me. Do you guys have any insight into this and what is the advertised throughput for SCV2080 btw?
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Posted July 16th, 2019 17:00
Oh I see. I have replied to your PM.
On a side note, how about ME4084? I wonder if it may be more optimised toward throughput performance? We may be purchasing a few of them but judging from the appearance they come from the same (hardware) OEM partner as SCv2080.
DELL-Sam L
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Posted July 16th, 2019 08:00
Hello 5X5CX62,
With your SCv2080 they are traditionally setup to deal with the high IO. When it comes to throughput you will max out after 10 drives. I will send you a private message & if I can get you to send me your controller serial# for your SCv2080 we can look at your configuration to ensure that there are no issues & all is setup correctly.
Please let us know if you have any other questions.