Re: Advice on upgrading to SSD
On 3/2/20 6:52 PM, Joe Pfeiffer wrote:
> Tony van der Hoff <lists@vanderhoff.org> writes:
>
>> Hi,
>> I'm currently running Buster on a 5 year old GigaByte motherboard with
>> a 10-year old Raid-1 array on 2 500GB disks. Although it is running
>> fine, I'm becoming a bit concerned about the longevity of this
>> storage, so I'm planning to upgrade it to a 500GB or maybe 1TB SSD
>> from Crucial.
>>
>> My plan would be to install the SSD in the cage, and dd the contents
>> of the array onto the SSD. I would then change the BIOS to boot from
>> the SSD, making the RAID array redundant.
>>
>> Can someone please tell me whether this plan is feasible, and what
>> pitfalls I might encounter?
>
> I've found the best way to migrate to new disks, especially if I've
> already got a RAID array, is to put the new disk in, add it to the
> array, wait for the array to synchronize, remove the old disks from
> array. Now install grub on the new disk. If the new disk is larger
> than the old ones were, now resize the filesystem to match.
>
> This has worked well enough for me that I've got several one-disk RAID 1
> arrays in anticipation of eventual upgrades.
>
Good idea, but most likely the 500GB SSD is not really 500GB as most
vendors leave some space for over provisioning area.
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