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102 with mixed size disks
Hi, After a lot of years a 2TB disk is failing. It turns out to be cheaper to upgrade to 3TB. Can I mix a 2TB with a 3TB? Let raid do its magic with redundancy and then upgrade the second disk to...
tenforty wrote:
Hi,
After a lot of years a 2TB disk is failing. It turns out to be cheaper to upgrade to 3TB. Can I mix a 2TB with a 3TB? Let raid do its magic with redundancy and then upgrade the second disk to 3TB? Is this a rational strategy?
Thanks
Yes, this works (and is called "vertical expansion").
One caveat is that the array isn't protected during the resync. So it is important to have a backup of the data before you manipulate disks in the array.
tenforty wrote:
Hi,
After a lot of years a 2TB disk is failing. It turns out to be cheaper to upgrade to 3TB. Can I mix a 2TB with a 3TB? Let raid do its magic with redundancy and then upgrade the second disk to 3TB? Is this a rational strategy?
Thanks
Yes, this works (and is called "vertical expansion").
One caveat is that the array isn't protected during the resync. So it is important to have a backup of the data before you manipulate disks in the array.
And take a look at your potential future use. It's a lot cheaper to go bigger now than go small and have to completely replace again later.
2 x 4TB (or even bigger) now instead of 2 x 3TB now and another 2 x 4TB later.
Sandshark wrote:
And take a look at your potential future use. It's a lot cheaper to go bigger now than go small and have to completely replace again later.
I agree - it's cheapest to plan ahead, and not upgrade too often. The sweet spot for $/TB starts at about 4 TB at the moment, and seems to be moving up. And at the moment a 4 TB ironwolf costs $100 (US Amazon) - the 3 TB model costs $97.
Very helpful responses. Thank you all very much.
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