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PERC 5/i RAID Card: Tips and Benchmarks - Page 249

post #2481 of 7150
Quote:
Originally Posted by spasiba View Post
Thanks for your replies guys, got it up and running getting great throughput will post screenie later.
Question:
I have a pair of 1TB disks RAID0 still attached on the ICH9R controller can i import this array under the PERC controller? i dont want to delete the data on it.
Do i just set them up with the same settings and not initialize them?
Thanks!!
If possible backup the data. If you are going to keep it raid 0 yes. You can try to import foreign config or if that doesnt work recreate the array with the same settings and dont initialize. I was able to transfer Raid 0, Raid 1 but it will not work with the raid five.
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post #2482 of 7150
hi guys

finally 6x Seagate ST336754SS 36.7GB SAS 15Krpm 8MB arrived
wrong cables ordered so I need to cut "standard" 1xSAS->4xSATA cables easier than cutting drive's connectors
only 4 drives connected ... and I'm a little bit disappointed ... but more tests later

I have question about some errors in MegaRaid Storage Manager's log during initialization:

2897[Information, 0]2009-05-21, 13:37:02
Controller ID: 0 Unexpected sense: PD = --:--:1,
CDB = 0x2e 0x02 0x03 0xf2 0xde 0x80 0x00 0x00 0x80 0x00 ,
Sense = 0xf0 0x00 0x01 0x03 0xf2 0xde 0x87 0x0a 0x00 0x00 0x00 0x00 0x0c 0x01 0x00 0x80 0x00 0x00
2896[Information, 0]2009-05-21, 13:37:02
Controller ID: 0 Background Initialization corrected medium error:
( VD 0 Location 0x3f2de87, PD --:--:1 Location 0x3f2de87)
2895[Information, 0]2009-05-21, 13:37:02
Controller ID: 0 Unexpected sense: PD = --:--:1,
CDB = 0x28 0x00 0x03 0xf2 0xde 0x80 0x00 0x00 0x80 0x00 ,
Sense = 0xf0 0x00 0x03 0x03 0xf2 0xde 0x87 0x0a 0x00 0x00 0x00 0x00 0x11 0x00 0x0f 0x80 0x00 0x00


do you know what this "sense" means ?
post #2483 of 7150
Sense = none

I have no idea
    
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post #2484 of 7150
Quote:
Originally Posted by ounderfla69 View Post
If possible backup the data. If you are going to keep it raid 0 yes. You can try to import foreign config or if that doesnt work recreate the array with the same settings and dont initialize. I was able to transfer Raid 0, Raid 1 but it will not work with the raid five.
Brilliant, it works!!
Thanks!!
post #2485 of 7150
hi guys, Im in Sydney Australia.

Anyone know where I can source a cheap BBU with a cable for my Perc 5i?

they are very expensive on ebay, like $70 US with postage...

thanks
post #2486 of 7150
Hi folks!

I'm happy new owner of a Dell PERC 5/e controller. It's looks same close to 'i'-version,
but have components moved around, like man with right-heart.
Just checked that it works in both x4 and first x16 slot on my Intel mobo.
No SMBus issues, as mine board uses SMBus. May be it's problem actual to mobos, that were developed in quite past before than 2006 year.

Sorry, but as my english isn't a native one, so i'll prefer to ask few questions,
than read the whole 249 pages of discussion. Really sorry here, but i haven't a tons of time
with my english understanding level.

So questions are:
1) Does anybody really think, that just 667mhz memory chips need any monstro passive heating? As i seen LSI 8408E and any other RAID controllers don't use ANY heatsinks;

2) Will it enough if i'll just plug some small heatsink to LSI's ARM processor with thermal glue?

3) I see many monsters on IOP333 of user's cards? Do i really need such? I'm interesting in finding something cheap heatsink that will fit instead of stock Foxconn NH195.

4) Should i use original firmware or Dell one, as my OS supports both of these cards?

I can set up fan too, but it will little hurt, as i presume this RAID controller hasn't any
PWM fan connector, and no AUTOMATIC fan control of course.
So i'll be glad, if anyone say what 40mm fan will enough.

LSI stock products never uses ones. Only cards that used were Areca ones, but those had thermal sensor, fan failure sensor and i think more.

BTW, i use 40x40x28 Delta fan on my North bridge, to have enough cooling when it's under upper voltages, but as it's PWM-controlled, it's never runs on 15k rpm at nominal vMCH settings
Thinking about buy one for my CPU, but in future, i don't really need it right now.

Running open-stand now, but when i'll insert all HW in a case, i'll be using JUST stock installed case fans, or something low-blow, no Deltas or hi-rpm Titans and Scythes.
Edited by AaronStalin - 5/23/09 at 9:12am
post #2487 of 7150
Quote:
Originally Posted by fadetoblack View Post
Code:
ar@nas:~$ lspci | grep -i dell
03:0e.0 RAID bus controller: Dell PowerEdge Expandable RAID controller 5
however, i noticed this in dmesg:
Code:
[  441.174932] sd 6:2:0:0: [sdb] Very big device. Trying to use READ CAPACITY(16).
[  441.174976] sd 6:2:0:0: [sdb] 5857345536 512-byte hardware sectors: (2.99 TB/2.72 TiB)
[  441.175030] sd 6:2:0:0: [sdb] Write Protect is off
[  441.175033] sd 6:2:0:0: [sdb] Mode Sense: 1f 00 00 08
[  441.175107] sd 6:2:0:0: [sdb] Write cache: disabled, read cache: disabled, doesn't support DPO or FUA
i'm wondering about the last line specifically - i had set write back and adaptive read ahead in the perc bios, so why would it be saying read/write cache is disabled? has anyone else using a perc 5i in linux seen this?

3. has anyone managed to get dell's omsa software working in linux?
I don't know if you got your answers yet, i'm still reading some parts of this very long thread...

The driver is not talking directly to the hard drive, it's talking to the RAID controller which presents a "virtual" block device. so it's not going to detect the cache and will show up as disabled. The RAID controller will manage it's own cache. What you're seeing in dmesg is as expected.

I did get Dell's OMSA to work in Linux, but I'm running CentOS 5.3 and Fedora and OMSA works on both. I don't know what distro you're running, but if you're running something similar, look at using Dell's OMSA yum repository.
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post #2488 of 7150
Quote:
Originally Posted by Rib Feast View Post
Just a quick question! I'm about to get delivery of my 6/iR card and am going to use it in my Windows 7 workstation. Should I use the default/dell/lsi drivers?

Is there a LSI firmware I can flash to? The controller is a LSISAS1068E. Is there any point since it isn't a PERC?

Thanks

A PERC 6/i or a SAS 6/iR ? The two are totally different cards, with the latter being a very simple card. I'd steer clear from the SAS range of cards and stick with the PERCs. I made the change (SAS 5/iR -> PERC 5/i) and believe me, it's definitely worth it!


I found the SAS 5/iR to be horrible. If the 6/iR is anything like the 5/iR, I would do whatever's necessary and grab a PERC.
Edited by stebie - 5/23/09 at 8:40am
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post #2489 of 7150
Quote:
Originally Posted by stebie View Post

A PERC 6/i or a SAS 6/iR ? The two are totally different cards, with the latter being a very simple card. I'd steer clear from the SAS range of cards and stick with the PERCs. I made the change (SAS 5/iR -> PERC 5/i) and believe me, it's definitely worth it!


I found the SAS 5/iR to be horrible. If the 6/iR is anything like the 5/iR, I would do whatever's necessary and grab a PERC.
What was wrong with the SAS card (apart from no RAID5/6 or cache)? I am curious as I intend to use a HP SC40Ge, which is basically the same LSI chipset, to run my server OS drives in RAID1.
post #2490 of 7150
Quote:
Originally Posted by the_beast View Post
What was wrong with the SAS card (apart from no RAID5/6 or cache)? I am curious as I intend to use a HP SC40Ge, which is basically the same LSI chipset, to run my server OS drives in RAID1.
I think the lack of cache was (partially) the problem. At random times, when there was heaps of I/O (in our application, it was a Windows Server 2003 - AD, file server, DNS, DHCP, etc.), the server would freeze. Even the local console was inaccessible - was given nothing but a grey background. The only way to prevent it from freezing was, as silly as it sounds, disabling resident AV on the server. Even then, there were times the system stopped responding for 2 or so minutes, then magically begin responding.

As there was no cache onboard, the card was set to its default write-through caching option.

EDIT: The setup was a RAID-1 config with two 80GB WD SATA HDDs.
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