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> In my experience 4KB is my preferred block size That makes sense considering Advanced Format harddrives already have a 4K physical sector size, and if you pr
by jorvi 2y ago
> In my experience 4KB is my preferred block size
That makes sense considering Advanced Format harddrives already have a 4K physical sector size, and if you properly low-level format them (to get rid of the ridiculous Windows XP compatibility) they also have 4K logical sector size. I imagine there might be some real performance benefits to having all of those match up.
- UltraSane 2y agoIn the early days of VMware people had a lot of VMs that were converted from physical machines and this causes a nasty alignment issue between the VMDK blocks and the blocks on your storage array. The effect was to always add one block to every read operation, and in the worst case of reading one block would double the load on the storage array. On NetApp this could only be fixed when the VM wasn't running.