On Tue, 28 Oct 2014 10:33:55 +0100 Mariusz Gronczewski wrote:
> On Tue, 28 Oct 2014 11:32:34 +0900, Christian Balzer
> wrote:
>
> > On Mon, 27 Oct 2014 19:30:23 +0400 Mike wrote:
>
> > The fact that they make you buy the complete system with IT mode
> > controllers also means that if you would
>
> And finally the SAS drive. For CEPH I don't see this drive making much
> sense. Most manufacturers enterprise SATA drives are identical to the SAS
> version with just the different interface. Performance seems identical in
> all comparisons I have seen, apart from the fact that SATA can only qu
On Tue, 28 Oct 2014 09:58:45 -, Nick Fisk wrote:
> The RED drives are interesting, they are very cheap and if performance is
> not of top importance (cold storage/archive) they would seem to be a good
> choice as they are designed for 24x7 use and support 7s error timeout.
WD also have Red
eph.com] On Behalf Of
Mariusz Gronczewski
Sent: 28 October 2014 09:34
To: Christian Balzer
Cc: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] What a maximum theoretical and practical capacity
in ceph cluster?
On Tue, 28 Oct 2014 11:32:34 +0900, Christian Balzer
wrote:
> On Mon, 27 Oct
On Tue, 28 Oct 2014 11:32:34 +0900, Christian Balzer
wrote:
> On Mon, 27 Oct 2014 19:30:23 +0400 Mike wrote:
> The fact that they make you buy the complete system with IT mode
> controllers also means that if you would want to do something like RAID6,
> you'd be forced to do it in software.
If
> On 28 Oct 2014, at 09:30, Christian Balzer wrote:
>
> On Tue, 28 Oct 2014 07:46:30 + Dan Van Der Ster wrote:
>
>>
>>> On 28 Oct 2014, at 08:25, Robert van Leeuwen
>>> wrote:
>>>
By now we decide use a SuperMicro's SKU with 72 bays for HDD = 22 SSD
+ 50 SATA drives.
Our r
On Tue, 28 Oct 2014 07:46:30 + Dan Van Der Ster wrote:
>
> > On 28 Oct 2014, at 08:25, Robert van Leeuwen
> > wrote:
> >
> >> By now we decide use a SuperMicro's SKU with 72 bays for HDD = 22 SSD
> >> + 50 SATA drives.
> >> Our racks can hold 10 this servers and 50 this racks in ceph cluste
> On 28 Oct 2014, at 08:25, Robert van Leeuwen
> wrote:
>
>> By now we decide use a SuperMicro's SKU with 72 bays for HDD = 22 SSD +
>> 50 SATA drives.
>> Our racks can hold 10 this servers and 50 this racks in ceph cluster =
>> 36000 OSD's,
>> With 4tb SATA drives and replica = 2 and nerfull r
> By now we decide use a SuperMicro's SKU with 72 bays for HDD = 22 SSD +
> 50 SATA drives.
> Our racks can hold 10 this servers and 50 this racks in ceph cluster =
> 36000 OSD's,
> With 4tb SATA drives and replica = 2 and nerfull ratio = 0.8 we have 40
> Petabyte of useful capacity.
>
> It's too b
On Mon, 27 Oct 2014 19:30:23 +0400 Mike wrote:
> Hello,
> My company is plaining to build a big Ceph cluster for achieving and
> storing data.
> By requirements from customer - 70% of capacity is SATA, 30% SSD.
> First day data is storing in SSD storage, on next day moving SATA
> storage.
>
Lots
On 10/27/2014 05:32 PM, Dan van der Ster wrote:
> Hi,
>
> October 27 2014 5:07 PM, "Wido den Hollander" wrote:
>> On 10/27/2014 04:30 PM, Mike wrote:
>>
>>> Hello,
>>> My company is plaining to build a big Ceph cluster for achieving and
>>> storing data.
>>> By requirements from customer - 70% o
Hi,
October 27 2014 5:07 PM, "Wido den Hollander" wrote:
> On 10/27/2014 04:30 PM, Mike wrote:
>
>> Hello,
>> My company is plaining to build a big Ceph cluster for achieving and
>> storing data.
>> By requirements from customer - 70% of capacity is SATA, 30% SSD.
>> First day data is storing i
On 10/27/2014 04:30 PM, Mike wrote:
> Hello,
> My company is plaining to build a big Ceph cluster for achieving and
> storing data.
> By requirements from customer - 70% of capacity is SATA, 30% SSD.
> First day data is storing in SSD storage, on next day moving SATA storage.
>
How are you planni
Hello,
My company is plaining to build a big Ceph cluster for achieving and
storing data.
By requirements from customer - 70% of capacity is SATA, 30% SSD.
First day data is storing in SSD storage, on next day moving SATA storage.
By now we decide use a SuperMicro's SKU with 72 bays for HDD = 22 S
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