which raid controllers for home lab server?

[Opensupport.it]

i'm new on this forum, i have a question:

I have to decide between tree REAL raid controllers (LSI crossflash firmware) form make RAID1 for my Lab Home Server (virtualization system on proxmox 4.0), i found tree interesteng model used on ebay:

1)- IBM M1015 (more cheap but no cache no bbu) performance??
2)- IBM M5015 but without BBU (with 512mb cache) cheap
3)- IBM M5014 but without BBU (with 256mb cache) cheap

Some pepole not have recommended the 5014 model (same 5015 but 1/2 memory cache)
Does anyone know if I can still enable the cache on the model 2) without BBU???

some performance on your system??

or is sufficient a M1015 (no cache no bbu) crossflash in IR MODE?

N.B: in the lab home server have UPS system and for now no bbu needed (i think...)

tnks

 

[canta]

5015 or 5014.. Or newer that based on your budget

I am using5014 with lsi firmware that configured as raid 1
You can force cache without using bbu. The firmware will give you warning on corruption when power disconnect immediately while doing writing.

1015 raid 1 is a laugh!!!!!!!/ slow and slow.
You need real hw raid with cache memory.

I have proxmox 3.4 raided 2 ssd and 2 wd black..
Performance on raided 1 ssd is good.
Hw raid is 5014. I did not want to buy . another raid card and stick with 5014.

Make sure you are adding 40mm fan on raid card

 

[Opensupport.it]

i found 5014 e 5015 at the same price...
5015!

a fan? controller have heat sink

 

[Patriot]

i found 5014 e 5015 at the same price...
5015!

a fan? controller have heat sink

Meant for server chassis airflow.
If you are actually going to be hammering the controllers they may need active cooling depending on your chassis airflow.

 

[Opensupport.it]

you flash only firmware or all board ? (SBR for speed boot)

 

[canta]

you flash only firmware or all board ? (SBR for speed boot)

No speed boot..by replacing sbr

I do not remember,if flashed sbr or not..

I think. You are good with IBM firmware .

You have to make sure on your i bm firmware. Cache can be enable without bbu.

Do not forget ups.. Since loding power during writing can cause corruption...

 

[Opensupport.it]

ok i upgrade at last ibm firmware and life happy

 

[kroem]

M5016, no requirement for BBU. (right?)

 

[canta]

M5016, no requirement for BBU. (right?)

do not know

as long as you can force cache on without BBU..

I know 5014/15 can be forced without BBU *with your own risk*

 

[kroem]

yeah, but 5016 have CacheCade ... Me thinks...

 

[canta]

yeah, but 5016 have CacheCade ... Me thinks...

hahah, oh you are good
BBU not related then....

btw, how is your IKEA project?

 

[kroem]

Damn i must be tired - meant CacheVault of course! (EDIT. even more confused now...should've dones some more reading - I was under the impression that there was a capacitor on this card - turns out NOT... damn, need to get a BBU...)

Oh, it kind of took a turn, and now not-at-all an IKEA project Just a cabinetcabinet...

 

[Opensupport.it]

but is normal that 5014 ibm firmware is slow to boot ??
LSI megaraid....
version...
copriright.......
F/W initializing.

 

[canta]

but is normal that 5014 ibm firmware is slow to boot ??
LSI megaraid....
version...
copriright.......
F/W initializing.

YES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I tried to flash with LSI firmware and with LSI SBR.. still slowwwwwwwwwwwwwwwwwww

I think I flashed back to IBM SBR again..

 

[Opensupport.it]

okkkk i do not spend time to reflash!!
but where is the difference to flash lsi or remaining in ibm firmware?

but were i find last ibm firmware?? because i have two controller and not the same firmware/software versione

firmware versione or firmware pakage??? there is two number version in the information controller boad.



tnks