AMD THREADRIPPER PRO 3995WX

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smacl
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Re: AMD THREADRIPPER PRO 3995WX

Post by smacl »

dhirota wrote: Tue Jun 08, 2021 12:37 am Since my last update, I have been installing more software on my TR PRO running W10 Pro installed on a 1 TB Samsung 980 Pro NVMe stick. Although it has a 5 year warranty, there is also an endurance limit that comes with the warranty. The majority of most people will probably be under the endurance limit in their use of the SSD/NVMe stick. Shown below are some of the parameters to consider.


SAMSUNG-980-PRO.jpg


I used the Samsung Data Migration software to copy all the information on the 1TB 980 PRO to the 2TB stick. If you have ever copied a boot disk with 200+GB on it, the time with a SSD might take 30 to 60 minutes. In this instance, it took a total of 6 minutes as seen on the screenshot below.


DATA-MIGRATION.jpg


One of the significant reasons for the increased boot disk size besides speed is the accumulation of programs and data as well as endurance as shown in the table above. With the ability to track the health of our boot SSD/NVMe disks and raid individual HDDs it is important to check the remaining 5 year warranty to receive a better idea of system stability.
A couple of thoughts on this. Firstly, how would an endurance failure manifest itself? My understanding was that SSDs typically performed read after write verification so a write failure would result in a bad sector, the write happening to another sector and a net effect of the usable disk space being reduced but no lost data. Secondly, choice of RAID strategy becomes important here. Using RAID 1+0 for example is going to provide both redundancy against drive failure while also halving the number of writes to each drive hence delaying endurance issues. The redundancy cost is needing twice the number of drives and slots per TB so robust but expensive.
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Re: AMD THREADRIPPER PRO 3995WX

Post by badam »

if we are talking about safety then i'would choose zfs over any kind of raid, you have the oportunity the create snapshots, bitrot protection,etc. Of course then you will need high performance networking for example 10g, 25g,40g and the latency still lag behind it depends on the usecase, but we currently using reg360 over 1g ethernet and still working perfectly fine some of the tasks are io botlenecked but most of them is fine. and the data safety is more important then speed in a lot of cases. and not to mention we can load the projects from different machines in just a moment.

and the second advantage is that you have lot more storage space then any other solution. we have 21 drives in 3 raidz2. of course this is a small storage server. we are going to replace our networks to 10 g in the near future.
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Re: AMD THREADRIPPER PRO 3995WX

Post by jedfrechette »

smacl wrote: Tue Jun 08, 2021 11:35 am Firstly, how would an endurance failure manifest itself?
All the SSD's I've had fail got really, really, I mean unusably slow. I'm no expert, but I think that's the typical failure mode rather than abrupt failure and data loss. Fortunately, all the crypto bros are busy testing this for us as we speak.

Big +1 for ZFS, it is amazing and I wish something similar existed in Windows land.
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Re: AMD THREADRIPPER PRO 3995WX

Post by smacl »

jedfrechette wrote: Tue Jun 08, 2021 7:13 pmFortunately, all the crypto bros are busy testing this for us as we speak.
Looks very much like the CHIA miners will be hoovering up the big HDDs rather than the SSDs as from what I've read the SSDs are failing pretty quickly. Looking forward to the next crypto crash so I can put together a new system without being gouged on prices.
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Re: AMD THREADRIPPER PRO 3995WX

Post by jedfrechette »

smacl wrote: Wed Jun 09, 2021 8:34 am
jedfrechette wrote: Tue Jun 08, 2021 7:13 pmFortunately, all the crypto bros are busy testing this for us as we speak.
Looks very much like the CHIA miners will be hoovering up the big HDDs rather than the SSDs as from what I've read the SSDs are failing pretty quickly.
I think they need both, fast SSDs to create their lottery tickets as quickly as possible and then big HDDs to file them away.

The giant waste of resources that is crypto can't die soon enough.

Interesting reddit thread from that world about endurance:

https://www.reddit.com/r/chia/comments/ ... _and_tear/
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Re: AMD THREADRIPPER PRO 3995WX

Post by dhirota »

jedfrechette wrote: Wed Jun 09, 2021 3:36 pm
smacl wrote: Wed Jun 09, 2021 8:34 am
jedfrechette wrote: Tue Jun 08, 2021 7:13 pmFortunately, all the crypto bros are busy testing this for us as we speak.
Looks very much like the CHIA miners will be hoovering up the big HDDs rather than the SSDs as from what I've read the SSDs are failing pretty quickly.
I think they need both, fast SSDs to create their lottery tickets as quickly as possible and then big HDDs to file them away.

The giant waste of resources that is crypto can't die soon enough.

Interesting reddit thread from that world about endurance:

https://www.reddit.com/r/chia/comments/ ... _and_tear/
Jed

Thank you for searching for the documentation on what I did in my last post to enhance endurance of my W10Pro boot drive (Samsung 980 Pro, 2TB). The significant difference from your referenced discussion shown below, is my 100% vs the suggested 10% over-provisioning for an additional cost of US$200.

SSD-ENDURANCE.jpg

If you are building a system for the future, better acquire some parts now before the BIDEN costs make it prohibitive.
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Dennis Hirota, PhD, PE, LPLS
[email protected]
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