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PERC 5/i RAID Card: Tips and Benchmarks - Page 589

post #5881 of 7194
For PERC 5/i

Latest LSI Firmware to date that can be flashed: 7.0.1-0083
Latest driver WHQL (5.2.104 - Windows 8 Consumer Preview)
Latest driver that works (but LSI doesn't test or support) - 5.2.112 -- This requires a manual install. Use the LSI 8408E or RAID 5/6 based on LSI MegaRAID.

@cptcrunch on the PERC 6 RAID performance issue:

There are a couple potential issues.

1) There was a bug in some firmware with this drive that could cause performance issues (or marked bad sectors).
2) This is an "advanced format" or 4K sector drive. The PERC 6 might not be handling this well. The partitions and RAID stripes are not aligned for the 4K sectors.
post #5882 of 7194
Quote:
Originally Posted by secured2k View Post

@cptcrunch on the PERC 6 RAID performance issue:
There are a couple potential issues.
1) There was a bug in some firmware with this drive that could cause performance issues (or marked bad sectors).
2) This is an "advanced format" or 4K sector drive. The PERC 6 might not be handling this well. The partitions and RAID stripes are not aligned for the 4K sectors.

I updated the firmware before the latest batch of benchmarks, so hopefully there is no problem there.

What is the best way to create a raid 5 array and partition it with the advanced format drives?
post #5883 of 7194
Quote:
Originally Posted by secured2k View Post

@cptcrunch on the PERC 6 RAID performance issue:
There are a couple potential issues.
1) There was a bug in some firmware with this drive that could cause performance issues (or marked bad sectors).
Quote:
Originally Posted by cptcrunch View Post

I updated the firmware before the latest batch of benchmarks, so hopefully there is no problem there.

Cptcrunch - Secured2k is talking about firmware in the hard drives - not in the controller.
post #5884 of 7194
Quote:
Originally Posted by jmdixon85 View Post

Just got a perc 5/i off ebay that has arrived today. but I'm having some issues. First of all, the card causes both my fileserver and my main system to not post if the RAM is installed in the card. The only way I can get the card to work is to remove the 256MB RAM.

What is the status of the onboard controller ? Is it in RAID mode ? Because it shouldn't be.
post #5885 of 7194
Quote:
Originally Posted by RobiNet View Post

Cptcrunch - Secured2k is talking about firmware in the hard drives - not in the controller.

Right. I updated the firmware on the hard drives before the lastest benchmarks. Sorry for not making that clear. I am running 6.0.2-0002 with no way that I've found so far to update it to 6.3.x.

EDIT: Finally got 6.3 on my PERC 6 card. I'm rebuilding the Raid 5 array now (3x2TB HD204UI) and hopefully this will result in better speeds and initialization time.
Edited by cptcrunch - 3/7/12 at 10:11am
post #5886 of 7194
529

Is this good? Perc 5/i with 4 15k Fujitsu drives in RAID0.
post #5887 of 7194
*** I don't monitor forums. ***

Did you install from a Windows Server 2008 R2 SP1 media or did you upgrade after? SP1 was supposed to come with some slightly newer or compatible drivers and code to support advanced format drives.

What sector and physical sector sizes are reported for the volume when you use the command "fsutil fsinfo ntfsinfo [drive:]"?

Are you using Adaptive Read Ahead? This is the option that uses read ahead when requests for data are sequential while random access turns off the read ahead policy.



I don't use 4K drives and haven't much time these days to tool around to see what the PERC 5 and 6 cards do when given a 4K drive, but I do have these two responses from LSI's KB as of January 2011.

Quote:
16187, Sector alignment needs with MegaRAID controllers
MegaRAID controllers actually store their configuration data at the end of the drive, using the last 512MB of space on each drive. This space is used for both the configuration data necessary to ensure mapping of where the data should be written as well as something of a swap file for when a Migration is done (adding another disk or changing the RAID level of an existing array).

For this reason, no additional OS alignment considerations are needed when using LSI MegaRAID controllers. Sector 0 of each drive will be the first sector that is passed up to the OS (whether 4k, 512b, or emulated 512b from 4k).

In addition to the above, please keep in mind that only 512b sectors are supported by LSI for our MegaRAID products at this time. Various performance issues may be experienced with with drives using 4k sectors and these drives are not recommended by LSI. While future support of 4k sectors is planned, no firm date or product selection has yet been set for this.
Quote:
16230, Are 'Advanced Sector' 4K sector drives supported by LSI?
No 'Advanced Sector' 4k sector disk drives are listed as compatible on any LSI controller at this time.

Sources:
http://kb.lsi.com/KnowledgebaseArticle16187.aspx
http://kb.lsi.com/KnowledgebaseArticle16230.aspx
post #5888 of 7194
Does anyone have a link to the 7.0.1-0051 firmware? I'm having issues with my Perc5 not being recognized after a warm boot and was told that this firmware would fix it. I can't find it anywhere.
post #5889 of 7194
IMG_20120313_183912.jpg

Logisys CC2.
post #5890 of 7194
Quote:
Originally Posted by johnny555 View Post

Does anyone have a link to the 7.0.1-0051 firmware? I'm having issues with my Perc5 not being recognized after a warm boot and was told that this firmware would fix it. I can't find it anywhere.
Becareful if you down grade firmwares, you might lose your array. if it does happen, just flash the previous firmware back on and your array should be back.
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