Feature request: specify EBS mount options

[aerogt3]

It would be useful to have the ability to specify mount options for shared EBS volumes. Things like rsize/wsize, etc. I don't currently see such capabilities per the documentation: https://docs.aws.amazon.com/parallelcluster/latest/ug/SharedStorage-v3.html

[joehellmersNOAA]

+1 on this

[himani2411]

Hi @aerogt3 and @joehellmersNOAA

Thanks for the request. I have tracked this feature request in our Backlog.

[aerogt3]

It seems that nconnect is not supported at the kernel level at all in the aws-parallelcluster==3.10.1 ubuntu2204 AMI? I think support for this (and a way to easily specify it) would also be worthwhile.

ubuntu@q-spot0-c8gxlarge-dy-c8gxlarge-spot-1:~$ grep -r nconnect /usr/src/linux-headers-$(uname -r)
ubuntu@q-spot0-c8gxlarge-dy-c8gxlarge-spot-1:~$ ^C
ubuntu@q-spot0-c8gxlarge-dy-c8gxlarge-spot-1:~$ sudo sysctl -a | grep nfs
fs.nfs.idmap_cache_timeout = 600
fs.nfs.nfs_callback_tcpport = 0
fs.nfs.nfs_congestion_kb = 90240
fs.nfs.nfs_mountpoint_timeout = 500
fs.nfs.nlm_grace_period = 0
fs.nfs.nlm_tcpport = 32768
fs.nfs.nlm_timeout = 10
fs.nfs.nlm_udpport = 32768
fs.nfs.nsm_local_state = 0
fs.nfs.nsm_use_hostnames = 0
sunrpc.nfs_debug = 0x0000
sunrpc.nfsd_debug = 0x0000