Hi, I've been using similar servers for a while for KVM linux machines, and the only I was able to achieve decent performance with no SLOG was with RAID MIRROR only configuration, so 2 disks with 2 disks, not perfect but good enough for my needs.
I did try the default RAID-Z, that was a no-go, but RAID MIRROR is ok (it's still SATA disks in the end). Seb, On Mon, Jun 15, 2015 at 9:07 PM, <[email protected]> wrote: > one of my clients owns a supermicro-based box with 4 hot-swap sata bays. > it has integrated SATA and (i believe) no SAS. the original admin populated > it with (3) 1TB SATA disks and commissioned it as a fileserver (simple > raid5). it has 32GB of memory. the box is no longer being used, so it's > been allocated to me for the purpose of hosting another windows server. i'd > like to virtualize the server via smartos/kvm but i have reservations. > > i believe i can get away with using only 16GB for VMs, so that leaves 16GB > for smartos/zfs - i think that'll probably work well. but i seriously doubt > those disks will give anything resembling decent performance. i only have 4 > bays to work with, and only one is currently free. for a windows server VM > hosting a multi-user database, would adding a SATA SSD as log device for > the zones zpool keep me out of hot water here or is this just not going to > work? > > obviously i can try to source a supported SAS controller and disks, but > i'm wondering if i can actually get by with SATA ... what if i filled the > (4) 3.5" bays with SSDs and striped across two mirrors? would that mostly > guarantee decent performance, or will that just waste time and money? > > experienced opinions greatfully accepted! > > > ------------------------------------------- > smartos-discuss > Archives: https://www.listbox.com/member/archive/184463/=now > RSS Feed: > https://www.listbox.com/member/archive/rss/184463/26900931-98fbc364 > Modify Your Subscription: > https://www.listbox.com/member/?&; > Powered by Listbox: http://www.listbox.com > -- Sebastien Perrreault Partner Les Technologies Alesium Inc P: 514-298-7193 F: 514-221-3668 E: [email protected] "Life's missed opportunities, at the end, may seem more poignant to us than those we embraced--because in our imagination they have a perfection that reality can never rival." -- Roger Ebert ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
