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0 pointsbrongondwana1y ago0 comments

My beard isn't entirely grey yet!

The new NVMe drives we've only had for a few years, but so far there's only been a single failure across the whole fleet, and we keep spares in stock. It's been very reliable, not like the weeks back in (hmm, 2006? 2007?) the ancient past, when we were losing 15kRPM velociraptors every other day. They had a firmware fault and we eventually got an update which made them reliable, but it was a wild few months.

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AndrewDavis1y ago

A few more than one, but it has been a lot less than when we were dealing with spinner. I think I requested about one or two replacements a year, a far cry from the one a week I was doing before.

brongondwanaOP1y ago

If I didn't see it, it didn't happen...

OK, I stand corrected. We lose one or two NVMe drives per year :)

karolzlot1y ago

Can I ask which brands / models of SSD are you using?

AndrewDavis1y ago

We didn’t replace all servers at once, it was progressive, therefore due to availability the models we used changed over time.

Our first batch of all nvme machines had SSDPE2KX080T8, they became harder to source and we moved to SSDPF2KX076T1.

With Intel no longer in the ssd business I believe we have some Micron MTFDKCC7T6TGH and MTFDKCC30T7TGR. And as mentioned in the blog post we've recently purchased some Solidigm D5-P5336 which are 61TB monsters.

Here's a fun related story. Our supplier had so much trouble finding SSDPE2KX080T8 that when we had exhausted our spares, I had to sync everything off a machine, tear it down and pull its drives for spares and rebuild it with the smaller SSDPF2KX076T1. Then we had lots of spares

j / k navigate · click thread line to collapse

0 pointsbrongondwana1y ago0 comments

My beard isn't entirely grey yet!

0 comments

AndrewDavis1y ago

A few more than one, but it has been a lot less than when we were dealing with spinner. I think I requested about one or two replacements a year, a far cry from the one a week I was doing before.

brongondwanaOP1y ago

If I didn't see it, it didn't happen...

OK, I stand corrected. We lose one or two NVMe drives per year :)

karolzlot1y ago

Can I ask which brands / models of SSD are you using?

AndrewDavis1y ago

We didn’t replace all servers at once, it was progressive, therefore due to availability the models we used changed over time.

Our first batch of all nvme machines had SSDPE2KX080T8, they became harder to source and we moved to SSDPF2KX076T1.

j / k navigate · click thread line to collapse