On 9/16/24 21:21, Arno Lehmann wrote:
Hi Greg,
Am 16.09.2024 um 18:41 schrieb Greg:
Hi there,
I would like ot use Debian box as iSCSI server (target if I'm not
wrong). So I have two questions:
1. If I export /dev/md0 via iSCSI would I benefit from memory buffers?
That's an interesting question... in all environments I ever used it,
network was the bottleneck, so even if there are scenarios where memory
buffers may be useful, you'd need very good connectivity to notice them,
I think.
I'm using ConnectX 3pro Mellanox adapters (56Gbps), it was cheaper than
10Gb Ethernet.
2. Is it possible to export a virtual device (like vmdk) by iSCSI?
This would allow slight overbooking of the storage space.
vmdk in particular I don't know, but I have exported overcommitted /
thin LVs; for vmdk you might need to add some fancy losetup wrapper.
My experience with overcommitting block storage is not purely positive,
so I'd suggest to be very careful ;-)
Ok, thanks
