Re: [PVE-User] Help for new server

[Frank Thommen]

On 10/28/2016 09:21 AM, Eneko Lacunza wrote:

Hi,

El 27/10/16 a las 15:07, Frank Thommen escribió:



I also need the battery for smart arrays?


If you do not plan to use ZFS, which sort of nullifies the use of a
RAID controller, then yes. If you care for your data a BBU is
absolutely vital and will give you a noticeable performance boost.

I understand that BBU improves performance, but in what way does it
"care for your data - absolutely vital"?

My understanding is that in fact it does add some risk to your data if
RAID controller fails - bye bye write cache data!


The BBU will store your unwritten cached data in case of a power
failure and write it down after power has been restored.  W/o BBU, you
would loose that data completely.  Of course, if you don't use cache,
you also don't need the BBU ;-)

Sure, but BBU is not vital for data care. If you want performance, you
need BBU, but you can safely use write-through without BBU. BBU does not
improve the consistency of your data.


Your argumentation is not completely correct: If you want performanace, 
you need caching (not BBU).  And if you use caching, you should really, 
really use BBU (your RAID controller might not even allow caching w/o 
BBU anyway)


And yes ist does improve data consistency very much: In the case of a 
power failure.


frank
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Re: [PVE-User] Help for new server

[Eneko Lacunza]

Hi,

El 27/10/16 a las 15:07, Frank Thommen escribió:



I also need the battery for smart arrays?


If you do not plan to use ZFS, which sort of nullifies the use of a
RAID controller, then yes. If you care for your data a BBU is
absolutely vital and will give you a noticeable performance boost.

I understand that BBU improves performance, but in what way does it
"care for your data - absolutely vital"?

My understanding is that in fact it does add some risk to your data if
RAID controller fails - bye bye write cache data!


The BBU will store your unwritten cached data in case of a power 
failure and write it down after power has been restored.  W/o BBU, you 
would loose that data completely.  Of course, if you don't use cache, 
you also don't need the BBU ;-)
Sure, but BBU is not vital for data care. If you want performance, you 
need BBU, but you can safely use write-through without BBU. BBU does not 
improve the consistency of your data.


And if the RAID controller is broken, you have a big problem anyway, 
no matter if you use caching or not ;-)
Sure, depends of the type of failure but I would prefer not to have much 
data stage in it... ;)


Cheers
Eneko

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Re: [PVE-User] Help for new server

[Frank Thommen]

On 10/27/2016 10:05 AM, Eneko Lacunza wrote:

Hi,

Not trolling, just curious about a thing you said...

El 26/10/16 a las 18:20, Michael Rasmussen escribió:

I also need the battery for smart arrays?


If you do not plan to use ZFS, which sort of nullifies the use of a
RAID controller, then yes. If you care for your data a BBU is
absolutely vital and will give you a noticeable performance boost.

I understand that BBU improves performance, but in what way does it
"care for your data - absolutely vital"?

My understanding is that in fact it does add some risk to your data if
RAID controller fails - bye bye write cache data!


The BBU will store your unwritten cached data in case of a power failure 
and write it down after power has been restored.  W/o BBU, you would 
loose that data completely.  Of course, if you don't use cache, you also 
don't need the BBU ;-)


And if the RAID controller is broken, you have a big problem anyway, no 
matter if you use caching or not ;-)


frank
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Re: [PVE-User] Help for new server

[David Lawley]

Watch nics, my hp units had broadcom nics and the drivers were buggy as 
heck.  Might be better now, but it was a few months of not knowing when 
they might crap out.. switched to intel and smooth sailing ever since




On 10/26/2016 7:47 AM, Info -- Asistar srl wrote:


Hello, I need some help

I want to buy a new HP server and mount proxmox 4.3 on it, because our 8
year old server is faulty.
I thought of this: HP Proliant DL380 Gen9 E5-2620v4 but from the forum i
have seen that it can have issues with the RAID.
Can someone tell me if these issues are addressed or if it continues to be
an unsupported server? If so, can someone tell me an alternative machine
with similar specs that is compatible with proxmox?

Thank You in advance
Ivan Bolognani






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Re: [PVE-User] Help for new server

[Silvestre Figueroa]

in my case, in The Smart Array that I mentioned, the battery pack was
included.

Exact description in bare metal box:* Smart Array P440ar with 2GB FBWC
*




2016-10-26 13:11 GMT-03:00 Info -- Asistar srl :

> thanks for the reply.
> I buy the model DL380 Gen9 E5-2620V4 with 64Gb RAM
> I also need the battery for smart arrays?
>
>
>
> Ivan
>
>
> Il giorno 26/10/16, 14:37, "pve-user on behalf of Silvestre Figueroa"
>  silvestrefigue...@gmail.com> ha scritto:
>
> >Hi all!
> >
> >Im from Argentina, my english is not so good but I think I can explain me.
> >
> >I have 2 HP servers at PVE 3.2 Cluster, 1 HP DL380 GEN8 y 1 HP DL380 GEN9
> >(same description that you post).
> >
> >No problems with hardware RAID... dl380 gen9 has a Smart Array P440ar con
> >2GB FBWC RAID Controller.
> >
> >works out of the box like a punch!
> >
> >
> >
> >
> >
> >2016-10-26 9:13 GMT-03:00 Alex Bueno :
> >
> >> I have 3 hp servers, 2 dl360 gen9 and 1 dl160 gen 9 with p440 raid
> >> controller. 0 issues, work out of the box.
> >>
> >> El dc., 26 oct. 2016 , 13:47, Info -- Asistar srl  va
> >> escriure:
> >>
> >> >
> >> > Hello, I need some help
> >> >
> >> > I want to buy a new HP server and mount proxmox 4.3 on it, because
> >>our 8
> >> > year old server is faulty.
> >> > I thought of this: HP Proliant DL380 Gen9 E5-2620v4 but from the
> >>forum i
> >> > have seen that it can have issues with the RAID.
> >> > Can someone tell me if these issues are addressed or if it continues
> >>to
> >> be
> >> > an unsupported server? If so, can someone tell me an alternative
> >>machine
> >> > with similar specs that is compatible with proxmox?
> >> >
> >> > Thank You in advance
> >> > Ivan Bolognani
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > ___
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> >> > http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
> >> >
> >> ___
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> >>
> >
> >
> >
> >--
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> >IT Consultant
> >Mobile: +542616462632
> >Skype: silvestrefigueroa
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Re: [PVE-User] Help for new server

[Michael Rasmussen]

On Wed, 26 Oct 2016 18:11:03 +0200
Info  --  Asistar srl  wrote:

> thanks for the reply.
> I buy the model DL380 Gen9 E5-2620V4 with 64Gb RAM
Remember ECC RAM.

> I also need the battery for smart arrays?
> 
If you do not plan to use ZFS, which sort of nullifies the use of a
RAID controller, then yes. If you care for your data a BBU is
absolutely vital and will give you a noticeable performance boost.

-- 
Hilsen/Regards
Michael Rasmussen

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Re: [PVE-User] Help for new server

[Info -- Asistar srl]

thanks for the reply.
I buy the model DL380 Gen9 E5-2620V4 with 64Gb RAM
I also need the battery for smart arrays?



Ivan


Il giorno 26/10/16, 14:37, "pve-user on behalf of Silvestre Figueroa"
 ha scritto:

>Hi all!
>
>Im from Argentina, my english is not so good but I think I can explain me.
>
>I have 2 HP servers at PVE 3.2 Cluster, 1 HP DL380 GEN8 y 1 HP DL380 GEN9
>(same description that you post).
>
>No problems with hardware RAID... dl380 gen9 has a Smart Array P440ar con
>2GB FBWC RAID Controller.
>
>works out of the box like a punch!
>
>
>
>
>
>2016-10-26 9:13 GMT-03:00 Alex Bueno :
>
>> I have 3 hp servers, 2 dl360 gen9 and 1 dl160 gen 9 with p440 raid
>> controller. 0 issues, work out of the box.
>>
>> El dc., 26 oct. 2016 , 13:47, Info -- Asistar srl  va
>> escriure:
>>
>> >
>> > Hello, I need some help
>> >
>> > I want to buy a new HP server and mount proxmox 4.3 on it, because
>>our 8
>> > year old server is faulty.
>> > I thought of this: HP Proliant DL380 Gen9 E5-2620v4 but from the
>>forum i
>> > have seen that it can have issues with the RAID.
>> > Can someone tell me if these issues are addressed or if it continues
>>to
>> be
>> > an unsupported server? If so, can someone tell me an alternative
>>machine
>> > with similar specs that is compatible with proxmox?
>> >
>> > Thank You in advance
>> > Ivan Bolognani
>> >
>> >
>> >
>> >
>> >
>> >
>> > ___
>> > pve-user mailing list
>> > pve-user@pve.proxmox.com
>> > http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>> >
>> ___
>> pve-user mailing list
>> pve-user@pve.proxmox.com
>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>>
>
>
>
>-- 
>ING. SILVESTRE E. FIGUEROA
>IT Consultant
>Mobile: +542616462632
>Skype: silvestrefigueroa
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Re: [PVE-User] Help for new server

[Silvestre Figueroa]

Hi all!

Im from Argentina, my english is not so good but I think I can explain me.

I have 2 HP servers at PVE 3.2 Cluster, 1 HP DL380 GEN8 y 1 HP DL380 GEN9
(same description that you post).

No problems with hardware RAID... dl380 gen9 has a Smart Array P440ar con
2GB FBWC RAID Controller.

works out of the box like a punch!





2016-10-26 9:13 GMT-03:00 Alex Bueno :

> I have 3 hp servers, 2 dl360 gen9 and 1 dl160 gen 9 with p440 raid
> controller. 0 issues, work out of the box.
>
> El dc., 26 oct. 2016 , 13:47, Info -- Asistar srl  va
> escriure:
>
> >
> > Hello, I need some help
> >
> > I want to buy a new HP server and mount proxmox 4.3 on it, because our 8
> > year old server is faulty.
> > I thought of this: HP Proliant DL380 Gen9 E5-2620v4 but from the forum i
> > have seen that it can have issues with the RAID.
> > Can someone tell me if these issues are addressed or if it continues to
> be
> > an unsupported server? If so, can someone tell me an alternative machine
> > with similar specs that is compatible with proxmox?
> >
> > Thank You in advance
> > Ivan Bolognani
> >
> >
> >
> >
> >
> >
> > ___
> > pve-user mailing list
> > pve-user@pve.proxmox.com
> > http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
> >
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>



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Re: [PVE-User] Help for new server

[Alex Bueno]

I have 3 hp servers, 2 dl360 gen9 and 1 dl160 gen 9 with p440 raid
controller. 0 issues, work out of the box.

El dc., 26 oct. 2016 , 13:47, Info -- Asistar srl  va
escriure:

>
> Hello, I need some help
>
> I want to buy a new HP server and mount proxmox 4.3 on it, because our 8
> year old server is faulty.
> I thought of this: HP Proliant DL380 Gen9 E5-2620v4 but from the forum i
> have seen that it can have issues with the RAID.
> Can someone tell me if these issues are addressed or if it continues to be
> an unsupported server? If so, can someone tell me an alternative machine
> with similar specs that is compatible with proxmox?
>
> Thank You in advance
> Ivan Bolognani
>
>
>
>
>
>
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