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Is there any Wear indicator tool for Xenserver Local SR on SSD?


Kallal Majumder

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Hi Experts,  can anyone confirm if 'smartctl' tool supports self test for HP LOGICAL volume? We running Xenserver 7.1.2 on Bl460c Gen8 blade with local SAS SSD and with RAID0 array.  I want take out wear level indicator to judge health of local SSD's. These SSD's are out of warranty so just need to know approximate age that it would run further.

 Getting "Device does not support self test logging " when testing smartctl. Screenshots attached.
 I found some read write stats with commands like dd , iostats, badsector but need output of SMART tools to get data related to wear indicator.

IMG-20200610-WA0003.jpeg

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Not sure there is an easy way to accomplish this. I have run NexentaStpor which requires the SMART settings to be shut off. Newer versions (5.X) of NexentaStor will do TRIM automatically, which is an important aspect of SSD drive maintenance and a subject of much discussion nd controvery. That said, I'm not aware of any way to to guess how long n SSD drive will work. I have seen them fail in as little as a year, even though well within warranty.

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If they're HP SAS SSDs you should probably be more worried about the firmware issues that caused several categories of HP SSD to permanently brick themselves after 40000 of uptime.

 

https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-a00092491en_us

https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00097382en_us

 

That's two different issues, one at 32,000 hours and one at 40,000.

 

Modern enterprise grade SSD will typically outlive your server hardware firmware bugs excluded.

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7 hours ago, Mark Syms said:

If they're HP SAS SSDs you should probably be more worried about the firmware issues that caused several categories of HP SSD to permanently brick themselves after 40000 of uptime.

 

https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-a00092491en_us

https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00097382en_us

 

That's two different issues, one at 32,000 hours and one at 40,000.

 

Modern enterprise grade SSD will typically outlive your server hardware firmware bugs excluded.

Indeed, any SSD drives used in production servers should be industrial/enterprise quality, designed for large numbers of write operations.

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On 6/11/2020 at 2:59 AM, Tobias Kreidl said:

Not sure there is an easy way to accomplish this. I have run NexentaStpor which requires the SMART settings to be shut off. Newer versions (5.X) of NexentaStor will do TRIM automatically, which is an important aspect of SSD drive maintenance and a subject of much discussion nd controvery. That said, I'm not aware of any way to to guess how long n SSD drive will work. I have seen them fail in as little as a year, even though well within warranty.

thanks for responding. These XenServers are built on Thin Provisioning/EXT3 partition. TRIM does not support EXT3. correct me if I am wrong?

 

 

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