Is there a mixed message from the SmartOS team. On one hand SmartOS is pushed as a stateless platform thus the exclusion of UPS monitoring. Reading this thread it seems like the answer hey if you want performance you need to spend big bucks on a battery backup log device.I don't get it.
On Mon, Jan 19, 2015 at 3:31 AM, Peter Toth via smartos-discuss < [email protected]> wrote: > 1. Yes, and writing out of KVM machines is always synchronous anyway as > Robert mentioned before - all data goes to disks. > 2. 5x mirrored vdevs (pair of 10K SAS drives) 10 drives in total > > If I trhow async I/O at the same box I get around 700MB/s sustained I/O. > > It is a dual controller LSI2308, latest Haswell chipset server (we've > received it today, haven't had much time to test yet) > > Cheers > Peter > > On Mon, Jan 19, 2015 at 9:15 PM, Greg Zartman <[email protected]> > wrote: > >> >> On Sun, Jan 18, 2015 at 11:25 PM, Peter Toth <[email protected]> >> wrote: >> >>> Just for reference: >>> >>> I have tested an Intel DC 3500 SSD as an slog device today - from a >>> CentOS KVM guest doing dd with 64k block size. >>> >>> Average write speed 270MB/s - I think that speaks for itself. >>> >>> Wow, yea that sounds more like it. Couple questions: >> >> 1. Did you do a write big enough to make sure you weren't just writing >> RAM? >> >> 2. What's you zpool config and what kind of hardware you running? That >> is, what kind of vdevs do you have? >> >> Thanks, >> >> Greg >> > > *smartos-discuss* | Archives > <https://www.listbox.com/member/archive/184463/=now> > <https://www.listbox.com/member/archive/rss/184463/26772761-5af1dc68> | > Modify > <https://www.listbox.com/member/?&;> > Your Subscription <http://www.listbox.com> > -- Greg http://www.linkedin.com/in/gregtreantos ------------------------------------------- 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
