[OpenIndiana-discuss] Good SLOG devices?

[Roy Sigurd Karlsbakk]

Some newer SSDs use MLC and have battery-backed cache. While MLCs are generally slower than SLCs, a battery-backed DRAM cache makes these perform quite well

roy

----- Original Message -----
> the difference can be largely explained by the type of memory used:
> MLC and SLC
> please google this and read the links I posted earlier, it'll make
> your choice easier.
> 
> @Ivar. If you're interesested in the potential hard to find acard
> drives I can help you with a supplier.
> 
> On Wed, Mar 2, 2011 at 12:37 AM, Ivar Janmaat <ijanmaat at xs4all.nl>
> wrote:
> > I was wondering about the iops also.
> > It states: "Note that Intel tests 4KB random write performance
> > differently
> > on enterprise vs. consumer drivers so you can’t directly compare the
> > numbers
> > between the X25-M and X25-E."
> > What is the use of this?
> > 5000 write iops compared to 50.000 iops is a large difference.
> > Can someone explain please?
> >
> > Ivar
> >
> > Roy Sigurd Karlsbakk schreef:
> >>>
> >>> Next gen spec sheets suggest the X25-E will get a "Power Safe
> >>> Write
> >>> Cache," something it does not have today.
> >>>
> >>> See:
> >>>
> >>> http://www.anandtech.com/Show/Index/3965?cPage=5&all=False&sort=0&page=1&slug=intels-3rd-generation-x25m-ssd-specs-revealed
> >>>
> >>> (Article is about X25-M, scroll down for X25-E info.)
> >>>
> >>
> >> 5k IOPS for write isn't very good for SLOGs, comparing to those
> >> 50k+
> >> drives 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 elementært imperativ for alle pedagoger å unngå eksessiv
> >> anvendelse av idiomer med fremmed opprinnelse. I de fleste
> >> tilfeller
> >> eksisterer adekvate og relevante synonymer på norsk.
> >>
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> >>
> >>
> >>
> >
> >
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> >
> 
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-- 
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 elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.