matthew lagoe
2011-Mar-01 18:27 UTC
[zfs-discuss] [OpenIndiana-discuss] Good SLOG devices?
Personally I am trying out the OCZ revodrives, seem like a decent price for performance for SLOG. ---------------------------------------- From: "Roy Sigurd Karlsbakk" <roy at karlsbakk.net> Sent: Tuesday, March 01, 2011 9:56 AM To: "Garrett D''Amore" <garrett at nexenta.com> Subject: Re: [OpenIndiana-discuss] [zfs-discuss] Good SLOG devices?> a) do you need an SLOG at all? Some workloads (asynchronous ones) will > never benefit from an SLOG.We''re planning to use this box for CIFS/NFS, so we''ll need an SLOG to speed things up.> b) form factor. at least one manufacturer uses a PCIe card which is > not compliant with the PCIe form-factor and will not fit in many cases > -- especially typical 1U boxes.The box is 4U with some 7 8x PCIe slots, so I think it should do fine> c) driver support.That was why I asked here in the first place...> d) do they really just go straight to ram/flash, or do they have an > on-device SAS or SATA bus? Some PCIe devices just stick a small flash > device on a SAS or SATA controller. I suspect that those devices won''t > see a lot of benefit relative to an external drive (although they > could theoretically drive that private SAS/SATA bus at much higher rates > than an external bus -- but I''ve not checked into it.) > > The other thing with PCIe based devices is that they consume an IO > slot, > which may be precious to you depending on your system board and other > I/O needs.As I mentioned above, we have sufficient slots. As for the SATA/SAS onboard controller, that was the reason I asked here in the first place. So - do anyone know a good device for this? X25-E is rather old now, so there should be better ones available...... Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 roy at karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et element?rt imperativ for alle pedagoger ? unng? eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer p? norsk. _______________________________________________ OpenIndiana-discuss mailing list OpenIndiana-discuss at openindiana.org http://openindiana.org/mailman/listinfo/openindiana-discuss -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20110301/66c8d8fc/attachment-0001.html>