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33 views

Finding the serial number of hard disk drives on a SuperMicro server running MegaRAID SAS 8708ELP

As the title says, I have under my care a SuperMicro server running a hardware RAID 6 with a MegaRAID SAS 8708ELP on Linux. I have two failed disks that I have identified as the drives in slot 2 and ...
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0answers
21 views

How to get information why I cannot set a HDD to unconfigured(good) with megacli

Having this HDD in state unconfigured(bad). Enclosure Device ID: 32 Slot Number: 2 Enclosure position: N/A Device Id: 2 WWN: 5001F830xxxxxxxx Sequence Number: 6 Media Error Count: 0 Other Error ...
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0answers
21 views

VMWare ESXi 5.x - Megaraid controller and SMIS - correct way to monitor/manage controller?

I found some information online: How to Enable RAID Monitoring and Configuration under ESXi 5.x as well as here on ServerFault here: How can I get an email alert when RAID array is degraded? VMware ...
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0answers
22 views

Accessing existing disk using MegaCli preserving data

I would like to access an existing SAS drive using a megaraid controller. This seems to be possible with MegaCli -CfgEachDskRAID0 -a0 It is unclear from the documentation I've found that this ...
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2answers
119 views

MegaCli create virtual drive from new disk (is it dangerous for the existing array?)

This is a linux system with a MegaRaid controller. MegaCli is installed. I currently have: Virtual Drive: 0 (Target Id: 0) Name : RAID Level : Primary-6, Secondary-0, RAID ...
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0answers
183 views

LSI Raid controller: identifying failing hard disk (MegaCLI)

Info: I have a LSI 9265-8i controller. It's been running pretty well for two years. More recently it looks like a drive may be failing - no errors reported and no media issues reported when viewing ...
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0answers
119 views

MegaCli - configure email notifications

Does MegaCli have an option to configure alert notifications? In MegaRAID --> Tools --> Monitor Configure Alerts, I can set up the SMTP server, along with recipients, but I need to configure over ...
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1answer
1k views

Xenserver 6.5 LSI MegaRAID

Is there a package available to install the MegaCLI on XenServer6.5? For 6.5 there is this [1] but 6.5 has another kernel. XenServer 6.5 is based on CentOS6.5 (right?), so I also tried the ...
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0answers
100 views

megacli: Failed to alloc kernel SGL buffer for IOCTL

Today one of my servers started sending me alerts about non-optimal RAID state. These were triggered by a very simple script run by cron -- if it detects that not all of the disks report 'Optimal' ...
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1answer
1k views

megacli lost virtual disk raid configuration

I've been running centos on x64 with an LSI raid controller description: RAID bus controller product: MegaRAID SAS 1078 vendor: LSI Logic / Symbios Logic i was ...
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1answer
715 views

How can I reduce LSI raid array without data loss

I have a server with 8x SAS drives attached to hardware LSI RAID controller (MegaCli64) and all 8 drives are configured as single RAID 10 array. I now want to remove 2 drives and replace them with ...
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1answer
1k views

MegaCli Using write through instead of write back

My DB server is a dell r710 with megacli. Recently was getting poor performance from the database and stumbled across that the current cache policy is WT but the default cache policy is WB. # ...
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1answer
3k views

smartctl & megaraid: how to find the right device node for an adapter #

I can list physical drives on all megaraid adapters using: megacli -PDList -aALL This will display an adapter # for each adapter, and then list the physical drives attached to them. The ...
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1answer
70 views

Is it possible to use megacli to copy from one partition to another?

Except "dd" and "rsync", is it possible to directly use the megacli command to copy one partition to another? I am using h310 raid controller, and it seems not working well using "dd" or "rsync", ...
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1answer
867 views

How to properly use the the MegaCli command for a LSI Megaraid Secure erase for an SSD?

I tried the following commands but I keep getting a invalid command error. It seems to properly pick up the correct controller, drive slot, and adapter though. I currently don't have a screenshot of ...
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0answers
814 views

Dell PERC 6 - virtual drive goes offline because a drive went into the “ready” state

I have a Dell PowerEdge 2950 with four drives, and this raid controller (Dell Perc 6/i): lspci -nn RAID bus controller [0104]: LSI Logic / Symbios Logic MegaRAID SAS 1078 [1000:0060] (rev 04) ...
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5answers
4k views

RAID level confusion (MegaCli vs megasasctl output)

I'm utterly new to working with LSI MegaRAID controllers and I'm confused as to what RAID level I am actually running. My server is equipped with 4 disks, 4TB each and I would like to have them ...
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1answer
3k views

LSI MegaRAID SAS 9261-8i: Disk isn't recognized after replacement

I've got a Supermicro Server with an LSI MegaRAID SAS 9261-8i Raid Controller inside. There were 3 Disks attached to the controller which were configured as RAID5 array. One of the disks failed ...
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0answers
869 views

running commands on physical drives on different backplane with megacli

So when I run "MegaCli64 -PDlist -aALL -NoLog | egrep 'Slot|state|Inquiry|Enclosure'" to grab a list of disks and their status. I can see a total of 36 disks. The issue is that they have the same slot ...
0
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1answer
1k views

MegaCli64 -PDInfo shows drive but other commands says device does not exist

A drive recently went missing on our IBM server. It has happened on other servers in the past and I usually just replace them with out a problem. On one it is not automatically adding the new drive. ...
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2answers
924 views

LSI Cachecade Pro 2.0 with RAID10 SSD Cache?

I'm trying to add a RAID10 SSD Cache to a VD by this command: [root@livecd storcli]# ./storcli64 /c0 add vd cachecade type=r10 drives=252:4,252:5,252:6,252:7 assignvds=0 Controller = 0 Status = ...
2
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1answer
559 views

MegaCLI / MegaRAID Drive Groups

In the MegaRAID SAS Software User Guide it is stated that a Drive Group includes one or more virtual drives. An excerpt from the document is: "A virtual drive is a partition in a drive group that is ...
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1answer
417 views

MegaCli: when did a drive fail?

Using MegaCli64, is there a way to find out when a hard disk failed? I.e., /opt/MegaRAID/MegaCli/MegaCli64 -ShowSummary -aALL shows Connector : Int.Ports ...
2
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1answer
2k views

Should I enable “Patrol Read” on SSD drives?

LSI, Intel and Dell RAID controllers (perhaps others) have a "Patrol Read" feature to try to spot when a drive is failing before it completely fails. LSI seems to disable patrol read on SSD by ...
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0answers
669 views

Expand Raid 10 set on MegaRAID LSI 9261-8i

I have an existing Raid 10 drive with 8 drives. 4 in each span. I can't figure out how to expand the set by adding two more drives, one to each span. I'm using the MegaCLI command line tool. I ...
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0answers
3k views

PERC MegaRAID S.M.A.R.T. Status is not matching smartctl's - looking for clues what's wrong with the HDD

I'm getting strange SMART error from MegaCli on Dell R720xd and PERC H710P with five 4Tb SATA drives in RAID5 /opt/MegaRAID/MegaCli/MegaCli64 -PDList -aALL gives me some "Failure Seq Event Number" ...
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3answers
4k views

How to create Raid 10 with megacli

I have OpenFiler storage server. Without installing Windows and MSM, I want to create raid10 array from disks 2 to 21. I have already successfully installed MegaCli to OpenFiler but I'm stuck in ...
0
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1answer
1k views

Enabling Temperature Support on LSI MegaRaid Cards

I've got two IBM ServeRAID M5014 SAS/SATA Controller cards in two different machines. One reports drive temperatures, the other does not. I am hopping that it is some type of megacli option that I can ...
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0answers
124 views

Detecting a newly configured raid array without restarting

So, I created a 4-drive raid10 array on an LSI card (9285-8e) via megacli: # megacli -CfgSpanAdd -R10 -Array0 [252:4,252:5] -Array1 [252:6,252:7] -a1 This completed fine, and I see the device in ...
0
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1answer
2k views

MegaRAID - changing cache policy online

I would like to perform some tests with WriteThrough and WriteBack. Is it safe to change these settings on a production system? The RAID controller doesn't have a BBU so I would like to enable ...
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0answers
346 views

MegaCli refuses to configure new disk

A drive went bad on one of my nodes (actually 3 went bad, but there was no problem replacing the first one). following replacement of the drive, [root@ MegaCli]# ./MegaCli64 -PDList -aALL | egrep ...
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2answers
3k views

MegaCLI causes drive “Other Error”

I am having an issue where running "megalci -PDList -aAll" will cause an Other Error to be logged for 2 of the 6 discs in a pair of servers I have. Here is that again in more detail. I have two ...
2
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1answer
4k views

Bad Blocks Exist in Virtual Device PERC H700 Integrated

I have a DELL server with PERC H700 Integrated controller. I've made RAID5 with 12 harddrives and the virtual device is in Optimal state, but I receive such errors under linux: sd 0:2:0:0: [sda] ...
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1answer
232 views

Added drive to PERC6/i raid5 array instead of replacing - is there a way to fix this?

This is a 3 drive RAID5. The disk in slot 1 failed. After the disk was replaced, I ran: MegaCli64 -LDRecon -Start -r5 -Add -PhysDrv[32:1] -L0 -a0 Obviously that was not the correct command as now ...
1
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1answer
367 views

MegaCli newly created disk doesn't appear under /dev/sdX

After having successfully added 2 new disks in a new RAID virtual drive (background initialization done), I would have exepected it to appear under /dev/sdh but it's not there (so, unusable). The ...
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1answer
551 views

megacli64.exe manual

Is there any document that explains the command line switches of megacli better than the cryptic output of megacli64 -h ? The machine is an IBM x3650 m3 to which I added three more disks.
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2answers
864 views

How to I know hard disk members of any Virtual Disk LSI RAID with MEgaRaid

i get a machine with a LSI MEgarad card. I know what Virtual Diska has: Adapter: 0 Product Name: LSI MegaRAID SAS 9260-4i Memory: 512MB BBU: Absent Serial No: SV11807006 ...
4
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3answers
7k views

How to interpret this output from MegaCli?

/opt/MegaCli -CfgDsply -a0 | less RAID Level : Primary-1, Secondary-3, RAID Level Qualifier-0 Almost positive this is not running a RAID3, my guess is a RAID 10, where "Primary" means ...
4
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1answer
1k views

Reset MegaCLI error count

I have a system where MegaCli64 -PdList -a0 shows media errors on one disk. After investigating the errors, I've decided not to take any action for now. I'd like to reset the error count, so that ...