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MD3600i Hot spare parameters.

September 8, 2015, 11:42 pm
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Morning

we have a Dell MD 3600i SAN attached to which are attached 2 MD1220s.

The MD3600i is the 12 slot version with 1TB Nearline drives 6Gbps @ 7200 RPM ( Constellation ES )

Both the MD1220s are the 24 slot versions and house the 2.5inch 600Gb SAS 6Gbps @ 10K RPM .

The Hot Spare is configured in the 3600i .

As I understood it from the Dell literature the requirement is that the hot spare must be of equal capacity or bigger then the failed drive in order for it to work as a hot spare - I can't find any other requirements.

However the other day when one of the 600Gb drives failed in one of the MD1200s, the Hot Spare failed as well. What I'm trying to figure out is did the hot spare actually fail or was it just unable to act as a hot spare because of another parameter - ie the difference in speed of the drives?

I have replaced both drives and all is back to normal - but I am wondering if it would be better to reconfigure adding another hot spare to protect the faster 600Gb drives?

Many thanks.

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Can I use OMSA to monitor MD1200 attached to a Cisco UCS C-Series server?

September 17, 2015, 6:19 pm
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Hi,

Anyone know if i can use OMSA to configure hardware monitoring of MD1200 on a Windows Server 2012 RTM installed on a Cisco UCS C-Series server?


Thanks in advance,


Gerald

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Dell SAN Storage

September 19, 2015, 12:33 am
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Hi, Can anyone suggest me for choosing best SAN storage for below requirement.

2 Controllers

accelerated RAID 6 Enabled

and 12 TB Usable storage

My Project cost is 2.50 Lakhs INR

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ML6000 and AX4.5 SAN

September 29, 2015, 7:41 am
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Hi,

I have a ML6000 that is on an AX-4.5 SAN and I'm having trouble getting the Backup Exec server to see it. I can ping the ML from the server but neither the 'unknown media changer' or either of the LTO drives shows up in Device Manager. The drives are FC and there are no errors on the unit itself. It does have a control path listed on one of the drives (the other is a bad drive) over to Backup Exec

I inherited this system and I apologize for the knowledge gap - How will my server see this device if it isn't directly connected.

Thanks!

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Monitor MD3600 array in SCOM 2012

September 30, 2015, 11:35 pm
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I am trying to configure MD3600 storage array to be monitored in SCOM 2012 R2. I imported MD Storage Array Management Pack Suite Version 6.0 and read the admin guide for it. MD3600 appears in SCOM now but the status is not monitored. I tried to configure Run As account with community string as described here http://www.dell.com/support/manuals/us/en/19/Topic/dell-msamp-v6.0-for-mscom/MDStorageArraysv6.0_IG_Pubs-v1/en-us/GUID-80AA059C-F066-4464-AEF1-FD76402AA4BE

but I am not sure if I need to configure this community string somewhere on MD3600 itself? I also added this run as account into SCOM Profile - SNMP monitoring Account

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Installing Windows 7 64Bit on new SSD

October 2, 2015, 1:44 am
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Hey Guys,

i'm just getting a headdache. Windows installation doesn't find the installed ssd. I created a new VD in the PERC H310 menu and everything looks fine but windows setup doesn't see the device. Also not, when i choose the driver folder from the CD. I than downloaded some drivers from the dell homepage and choosed the windows setup to look on the usb device but... nothing works, windows doesn't "see" the ssd.

Changed vom ATA to AHCI, tested, back to ATA, tested ... how can i solve this problem?

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SANHQ 3.1 reporting 100% usage on NAS volumes

October 7, 2015, 8:04 am
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Since upgrading to 3.1, SANHQ has been alerting for Critical In-use space on 2 volumes. There are 6 NAS volumes on that group and there's enough space for the NAS. I believe the data distribution on those volumes is done automatically by the controller, so this distribution would be considered normal under these circumstances. Should I be worried that SANHQ is alerting me on those 2 volumes? is there something I can do to improve data distribution across NAS volumes? lastly, if this is considered normal, is there a setting on SANHQ to prevent this 'false positive' alert? 

Thanks in advance

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how to rebuilt a raid 1 on dell Precision 7610 after a disk failure

October 13, 2015, 12:30 pm
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Hi guys, first sorry for my english

I'm tryng to learn how to manage raid volume. At work we have a Precision T7610 with a RAID 1 Hardware.

One of the two HDD was broken  we removed and we have to replace that with a new one and rebuilt the array, but i'm not sure how proceed,  becasuse lack of experience. For example i read some post that i need an hard disk with the same geometry of the old one, what it means?

I supposed i needed only an HD with the same dimension of broken one(2 TB) but from what i read they must have also other property in common.

Is it true?

i Suppose depends on the hardware,  but exist some macro guide to download or read that help me how to do?.  For example if I put the new hard disk in the slot where the broken one was, the system automatically the new hard disk as a part of the RAID 1 Array and start with the Syncronization, or I have to enter in the firmware that manage the array, assign the new disk to the array and manually start the Syncronization manually?

Sorry if I asked stupid things……but I’m a very newbie

 

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MD3200 power supply failures

May 27, 2015, 8:51 am
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Hello, 

we got some failures with MD3200 PSU (50 units), the power supply units stop to working while start-up or if we get power failure the PSU are unable to start working, after analyzing the issues we discovered that when we disconnect the Raid controller, waiting some minutes the PSU start to working fine.

my questions:

1. this could be a bad communication between raid controller and power supply/fan modules? and upgrading the firmware to the latest firmware can resolve this problem.?

2. is there is any procedure to bypass the the controller and run the power supply unit without any control? and if it is dangerous?

thanks in advance.

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PowerVault 114X LTO4 drive - frequent problem inserting tape

November 4, 2015, 11:02 am
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Our customer is having an intermittent problem with their PowerVault 114X LTO4 drive.  It's a standalone drive, not a changer.  The unit just turned 3 years old last month, and has been out of warranty for about a month now.

The customer is experiencing an intermittent problem when trying to insert a new tape.  He's able to eject the prior night's backup tape fine, but when trying to install the next tape, it does not always pull in the next tape.  The way it's being described, it's like it's hitting a hard stop on something.  When this happens, he's having to power cycle the tape unit, at which point it will accept the tape. 

The backup jobs themselves have been running with no problems, and the tapes will eject with no problems.

Since it's out of warranty, an out-of-warranty support call with a Dell tech is $600, and that only includes being able to talk with a tech to try to narrow down the actual problem, not fix the problem if it's a physical problem with the drive. 

At this point, I'm just looking to see if anyone else has ideas on what may be causing this. 

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Reconstruction after Syswipe...

November 9, 2015, 11:04 pm
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hello,

Is there any possibility to restore or reconstruct array configuration after using syswipe on MD3000i?

thanks I.

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md3000i Degraded Physical Disk Channel

November 19, 2015, 10:29 am
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Hi,

I have an md3000i with attached md1000.  We had a HDD fail which the hot spare took over with no down time or issues.

Now I replaced the failed drive and it was put back into the array.  Once that completed now I'm showing Degraded Physical Disk Channel on channel 0,1 (I'm assuming that's the LUN number since LUNs 0 and 1 are part of the RAID group with the failed disk).

Also it seems to have created a Virtual Disk Not On Preferred Path issue.  This md3000i has dual controllers and the ESX hosts are all multipathed but not sure why all of this is coming around after replacing a failed disk.

Thanks,
Josh.

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md3000i + md1000 + 15x450Gb 15kSAS = Poor Performance

December 16, 2015, 1:27 pm
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Morning,

We recently acquired a used md3000i with an md1000 added shelf.  The 3000i has 15x450Gb 15k SAS (in one RAID6 LUN)  Dell drives.  The 1000 has 15x 1Tb 7200rpm (in 2 RAID 6 LUNs).

I have this hooked up to two clusters of ESXi machines using multipathing and iSCSI on a dedicated iSCSI switch.  This switch also has our original SAN which is similar but more of a mishmash of drives.

The two clusters are 4xr710 and 4xPE2950.

Performance to the original SAN is ok.  It has too many VMs on it and I need to upgrade the firmware.  So we got the 2nd SAN so I could update the first SAN without powering down 60 VMs.

I updated the unit to the latest firmware:

Current configuration
Firmware version: 07.35.39.64
NVSRAM version: N1532-735890-005
EMW version: 03.35.G6.50
AMW version: 03.35.G6.50

I have successfully copied data to the unit and it was performing great until about 2 weeks into production when everything shat the bed.  VMWare storage migration wouldn't even migrate the machines out because it was timing out.  I had to SSH into each host and manually move the machines from the new san to the old san.  This process took a really long time.  I guessed it was transfering at about 5mb/sec.  The average latency on LU0 was over 90seconds (90,000ms), which of course would cause vMotion to time out.

Now I don't know what kind of tests I can perform on this, that's what I'm looking for.  Trying to see if it's a controller issue or if it's a drive issue, back plane...I don't know but I would like to find out.

Thanks!
Josh!

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Power Supply / Cooling Fan issue

December 16, 2015, 10:44 pm
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Hello there,

I have problem in our PowerEdge MD36000f which is the left fan (Slot 1) has problem in the power supply. I called the service support this morning and the quality of the connection wasn't good at all. They phoned me back on my mobile number and they asked me to wait. The call cut off and they did not call me again. We have a 4-hours support warranty and did not get the benefit of that so far.

 

Is there any other way to sort this out, please? My location is in Saudi Arabia and the service tag number is <ADMIN NOTE: Service tag removed per privacy policy>

 

Kindest,

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Dell CX4-120 Fault SPS and Failed/Removed status

January 4, 2016, 6:18 am
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Hello,

I have a Dell CX4-120 reporting some faults.

1\Disk array Enclosure Bus 0 Enclosure 1 is faulted

2\Disk Processor Enclosure SPE is faulted

3\Standby Power Supply SPE SPS B is faulted (I have checked the cabling is all ok with this and carried out a power down and back up)

4\Disk 10/12/7 bus 0 enclosure 1 is faulted.

It is showing 4 disks removed the disks are connected and have a amber light, i removed each disk in turn and reseated and still got the same error, i then did the same but moved to another known working slot to check if the issue follows the disk or the backplane the issue shows its the disks.

(I left disconnected and then connected and waited 1 minute at a time)

I have a spare disk so swapped one of the reported slots "removed" with the new disk and its showing online.

so suspect all the disks have failed that are reporting "removed"

i am awaiting more replacement disks but with it reporting 4 disks at fault and in RAID6 i suspect i will have lost the Raid data?

The setup is

enclosure 1 15 x 1TB SATA 7.5 Disks

enclosure 0 15 x 146GB 15k Disks with the first 4 with the RAID software on them

EMC PN for the disks that have failed are 118032589 REV:A04 Seagate 

can i use other disks if so which?

Or does it seem that the enclosure is at fault and the disks are ok and a new enclosure is required?

NaviSphere 6

any help would be appreciated 


Thanks 

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LUNs unknown group won't come online / rebuild Dell CX4-120

January 7, 2016, 11:58 am
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Hello,

I have a dell emc cx4-120

2 enclosures

Raid 6

I have disk failed replaced and Show rebuild 0%

I have found that if I put the failed disks back in they show as removed but rebuild 100%

I can replace the disks but disk 10 and get disks showing enabled and rebuilt but soon as connect disk 10 the rebuild changes to 0% and transioning and doesn't change

And I am unable to bring any of the Luns online

If I have the replacement disks in there are no errors just unknown Luns which cannot get online

If I have the old disk 10 in it reports failed disk and enclosure fault

The disks are emc disks same size as before 1tb

The Luns are set to auto own by sp but also tried manual

Rebuild tried adsp and high but doesn't rebuild with new disks in not even 1% in two days

I have downed all hosts and sp and enclosures and back on in order and good time between to no avail

Any ideas would be greatly appreciated

Thanks Danny

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Dell EMC CX4-120 reset disk command?

January 8, 2016, 5:56 am
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Hello,

I have disks reporting as removed i need the command or process on how to clear the removed flag

trying to restore the LUNs and disk arrary

Thanks Danny

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Placing MD3220 controller on-line

January 8, 2016, 12:44 pm
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A SAS controller was replaced on an MD3220. The controller now shows as being in service mode and the recovery guru walks through the steps to bring it on-line, the main step being go to Advanced->Recovery->Place Controller Module ... within Storage Manager

This menu item (with a number of others in the Recovery menu) is grayed out.

How can I get around this issue to bring the controller back on-line?

Thanks

Raja

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Dell PowerVault 124T

January 11, 2016, 5:20 pm
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Hi, i am new in dell world and i have a concern regarding powervault 124t tape loader. My Robotic library is DELL PV-124 T and my Tape Drive is IBM Ultrium-HH4. i have a backup solution called backup exec 15 installed on my dell power edge 320. everytime i run backup the state always turn offline and the error message is "Robotic Library destination element full error" does i have a problem with robotic library or in tape drive or on my backupexec 15 backup solution?

i already test using  ITDT graphical Edition and this software detects the IBM ultrium HH4 tape drive. 

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MD3820i MPIO

January 12, 2016, 12:14 pm
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I am running a MD3820i (storage) with 2 controllers. I have 4 nodes (server 2012 r2) configured and connected to the storage however it seems that only one path is being used.

I read in a post that this is because only one(1) controller is the preferred path for the LUNs and the other is fail over. If that is true how can i get both controllers to be active so the load can be shared.

Other suggestions as to why i am having only one path being used are also welcomed.

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