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gavan4
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R730 Remaining Rated Write Endurance 4%

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Hi,

we have the following problem.

In a RAID1 array with 2 400-AEIB SSD disks, both disks showing "Remaining Rated Write Endurance 4%".

We have already bought 2 new disks for replacement, but we don't know which procedure is to follow.

Should we wait until the first disk fails and then replace it?

Should we remove one of the disks, install one of the new disks and the rebuild starts automaticall?

Or is there any other procedure?

Thanks in advance for any tips

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Re: R730 Remaining Rated Write Endurance 4%

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Hello

I would recommend making sure the firmware on the drive and controller are at the latest revision. You should also make sure you are using the latest version of the application used to monitor endurance. Updates may change how endurance is calculated or reported. It may also fix issues of incorrect reporting.

If both drives are at the same percentage then I would replace them now. If the endurance is accurate then once the drives reach 0% they will become read only. If you wait until that happens then whatever data is being written at that time may be corrupted.

I would replace one drive and then the other. If the storage controller and RAID level support a consistency check then I would run a consistency check before replacing any drives. A consistency check will verify virtual disk information and attempt to correct any faults that are found.

http://www.dell.com/storagecontrollermanuals/

https://www.dell.com/support/article/sln156240/

Thanks

Daniel Mysinger
Dell EMC, Enterprise Engineer

Get support on Twitter @DellCaresPRO

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Moderator
Moderator

Re: R730 Remaining Rated Write Endurance 4%

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Hello

I would recommend making sure the firmware on the drive and controller are at the latest revision. You should also make sure you are using the latest version of the application used to monitor endurance. Updates may change how endurance is calculated or reported. It may also fix issues of incorrect reporting.

If both drives are at the same percentage then I would replace them now. If the endurance is accurate then once the drives reach 0% they will become read only. If you wait until that happens then whatever data is being written at that time may be corrupted.

I would replace one drive and then the other. If the storage controller and RAID level support a consistency check then I would run a consistency check before replacing any drives. A consistency check will verify virtual disk information and attempt to correct any faults that are found.

http://www.dell.com/storagecontrollermanuals/

https://www.dell.com/support/article/sln156240/

Thanks

Daniel Mysinger
Dell EMC, Enterprise Engineer

Get support on Twitter @DellCaresPRO

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gavan4
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Re: R730 Remaining Rated Write Endurance 4%

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Hello Daniel,

the disks had been replaced sequentially and it worked.

Thanks!

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