A SAN is a Storage Area Network, for providing block-level access to storage subsystems across a network.

learn more… | top users | synonyms (1)

2
votes
1answer
19 views

HP P2000 MSA G3 SAN-SNMP Trap Setup

I'm trying to setup an SNMP trap for an HP P2000 G3 MSA SAN to report on the overall disk performance parameters (mostly I/O rates). We have a server monitor suite running which can use SNMP traps to ...
0
votes
1answer
27 views

Why can't I use Services or alike as my subdomain name with SSL?

We have purchased 2 SSL UCC certificates from GoDaddy a few months ago for something like myandy.com and myandy.com.au, and I had defined the following Subject Alternative Names: gateway services ...
2
votes
1answer
20 views

How to Resolve Hyper-V Disk Location to Drive Letter

When viewing cluster disk properties in Failover Manager or the physical path to VHD's in the settings of a VM in Hyper-V Manager the location is displayed by GUID. Is there a quick way find out ...
5
votes
1answer
42 views

Send interactive zoning commands to Brocade switch

I have a Brocade FC switch that I'd like to do some zoning on. I have a build file with too many lines to copy-paste into a normal interactive session, and I have ssh set up with pre-shared keys ...
1
vote
1answer
29 views

IBM V7000 firmware upgrade effect on mounted LUN

We've IBM storwize V7000 Storage where the firmware is going to be upgraded to latest version.. This will require a reboot to the storage. I've got arround 10 LUN's (almost 10TB) coming from this ...
0
votes
1answer
103 views

Dell PowerEdge R710 direct-attached to HP MSA 2040 SAN

I have no idea about Direct attached storage; I do not know that it is possible to do. I plan to use HP MSA 2040 storage to direct attached with my dell Power Edge R710 via Fiber Channel. What do i ...
2
votes
0answers
42 views

NetApp filer uses more amps when one power supply is turned off

We have two old NetApp FAS3050 filers at our colo. We also have an upcoming maintenance window that will take our circuits offline for an extended period of time. Our circuits are pretty much maxed ...
3
votes
2answers
94 views

ESXi boot time with 9 iSCSI targets

Our ESXi hosts have always been slow booting when it came to iscsi_vmk loaded successfully - sitting here for almost 5 minutes. In all a full server reboot takes almost 12 minutes. We have 9 iSCSI ...
2
votes
1answer
127 views

How to configure multiple iSCSI Portal Groups on a EqualLogic PS6100?

I am working on a migration from a VMware vSphere environment to a Hyper-V Cluster utilizing Windows Server 2012 R2. The setup is pretty small, an EqualLogic PS6100e and two Dell PowerConnect 5424 ...
2
votes
3answers
96 views

Strangeness during Windows Server Install (drive duplication) [SAN]

I have recently taken over as an administrator for an IBM chassis and associated blades, along with accompanying IBM SAN. One of the blades is running VMWare ESXi 5, and we don't need it anymore, so ...
-1
votes
1answer
48 views

San lun wwid number 3 in front

I have a san lun in a linux server, using this following command i saw this scsi_id -g -u -s /block/sda 38001438005dea3760000700002660000 #3 number in front of wwid sg_inq -p 0x83 /dev/sda | ...
-3
votes
1answer
49 views

Is it possible to use planet scale load-balanced virtulisation? [closed]

there are more and more implementations of distributed-virtualisation. A common one is Microsoft SCVMM. Currently, such things are kept inside LANs, and a san or fiber-channel system is used for ...
2
votes
1answer
27 views

MSA2312i shows duplicate enclosures?

I just installed a redundant controller in my MSA70. This is in use with our old MSA2312i SAN. Now I'm seeing two entries for 'Enclosure 3' (the associated MSA70 disk shelf) in the UI. It appears ...
2
votes
1answer
123 views

Beowulf cluster storage setup [closed]

I'm a Computer Engineering student working on a project with a Verari blade cluster, a bit outdated for today standards. I had acquired some Unix experience but I'm not an expert at all. This Verari ...
4
votes
1answer
116 views

Can someone explain the important differences between fabric, point to point, and loop on a fibre san?

I have a fully redundant HP 8/20q FC SAN that has been working well, but as I dig deeper into things looking for more performance, I'm quickly at the end of my knowledge when it comes to FC ...
0
votes
3answers
111 views

Linux: Get information/stats about storage network

I want to know as much info as possible about the SAN a linux server is connected to. What commands will give me the most comprehensive view? Simply knowing the WWN of LUNS doesn't do much for me. ...
2
votes
0answers
49 views

How is that possible that file was changed without date modification? [closed]

I'm using Blade Server with CentOS 6.5 (ext4) installed, disks combined in raid6, connected in a storage area network. Somehow some of my files become corrupted from time to time without updating the ...
2
votes
6answers
219 views

SAN zoning advantages and disadvantages

We just got a SAN, and I will be assisting in installing it and configuring it, I asked someone to explain to me what we will gain using SAN zoning, but he was unable to answer my question, could some ...
0
votes
1answer
35 views

Re-purpose DD660 (DataDomain) for VM Storage

We have an un-used DD660 (DataDomain) and an un-used x3650 M2 that we are wanting to use as a test bed for playing with Hyper-V as we look into it vs. VMware. Has anyone used a DD660 is simply ...
2
votes
4answers
96 views

Is there a way to read SMART attributes for drives in a SAN?

We are running an SSD array in a SAN, and the performance is great. But we need to monitor the write endurance SMART attributes so that we can determine when the drives are close to wearing out. We ...
1
vote
0answers
58 views

HP LeftHand StoreVirtual VSA host affinity

I am testing the HP LeftHand StoreVirtual VSA for ESXi 5.x (a 3 nodes setup, hosting the VMs in the same hosts that have the VSA appliances). Is there a way to define some sort of 'ESXi host to VSA ...
0
votes
1answer
37 views

Add node to HP StoreVirtual Management Group

I believe that what I am trying to do is simple: How to add a node to an HP StoreVirtual Management group (and cluster)? Basically we got newer VM hosts, and we want to move the nodes to those ...
1
vote
1answer
91 views

how to determine the iscsi target's naa in linux

I understand that iSCSI uses iqn / eui to identify target LUN. Once I have discovered the iSCSI target and logged in is there a way to determine the LUN's NAA id for the remote target from a linux ...
0
votes
0answers
35 views

How much throughput increase to expect from link aggregation (LACP/802.3ad)?

I identified that data transfer within my cluster will be bottlenecked by the network interconnect (I'm saturating the dual SAS connection to my storage with sequential workloads), and I'm undecided ...
5
votes
3answers
217 views

Brocade mirror ports

I'm getting a bunch of brand new condor 3 based switches and these things have a feature I'd like to use called port mirroring. Essentially, a mirror port can be configured to show all traffic being ...
1
vote
0answers
43 views

Mapping LUNs to drive slots on a MSA2312i?

I'm working with an older MSA2312i. I really need map the current LUN configuration to associated slots via the SSH so I can make it scriptable. Is there a ready way to do so? I would have thought a ...
0
votes
2answers
72 views

associating HP MSA2000 G3 to a virtual machine on windows server 2012 DC

Basically i wanted to have a Debian Squeeze associated to the SAN HP MSA200 G3 but due to lack of support i have now planned to deploy Windows Server 2012 Data-center on 2xHP Proliant DL380p G7 ...
4
votes
3answers
172 views

Should I worry about Split I/O in a SAN?

We have a NetApp Storage system presenting LUNs to a few Hyper-V clusters. When running a system performance trace (in perfmon) on a 2008 R2 there's a warning about a "high level of Split I/O". ...
0
votes
0answers
17 views

How to configure HP MSA20000 G3 on a HP Proliant DL380p G7 Server on debian squeeze

I have configured a HP MSA2000 G3 attached over fiber channel to HP DL380 G7 servers and have configured it initially over Microsoft Server 2012 Standard edition and have set the identifiers and ...
2
votes
1answer
82 views

What effect does HBA queue depth and max transfer size have on transmission overhead?

This is a pretty straightforward question. What, if any, relationship do queue depth and max transfer size a QLogic HBA have on management overhead on a transmission? What I'm hoping to learn how (if ...
2
votes
1answer
43 views

Windows 2012 BCD process to boot from replicated LUN for Boot from SAN

For our infrastructure we have a production site and a disaster site with SAN-based replication for the LUNs on the Windows servers. So for our proof of concept we have one server on the production ...
0
votes
0answers
103 views

zfs recovery after hardware failure

My ZFS storage hardware failed including the rpool disks. I installed a new server and tried to import use zfs import -f poolname. I am able to see the pool and the disk utilized. But I am not able to ...
2
votes
2answers
993 views

How to check the current queue depth value?

I have an OEL server connected via fibre to a NetApp SAN. How can I view the queue depth as the OS sees it? Output from lspci: 05:00.0 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel ...
0
votes
0answers
209 views

Detect Fibre Attached Tape Drive in Red Hat Linux

I am running Red Hat Linux 6.4 and I have one Fibre Attached Tape Drive which is not visible to the OS. I also have the WWPN of the tape drive. The server has two Qlogic HBA Card with two port each. ...
2
votes
1answer
35 views

Scalability in a High Availability Environment - SQL Failover Cluster 2012

I have created an environment where 1 SAN is connected with 2 Nodes (part of SQL Server 2012 Failover Cluster) of SQL Server. Windows Server 2008 R2 is used, and single DB is stored in SAN. We have ...
2
votes
1answer
130 views

Best method to share ISCSI lun across cluster of app servers

I'm in the process of migrating our cluster to new hardware. We use bare metal servers, no virtualization. Currently, we have around 30 "application" servers. When we make an update, we push the ...
0
votes
2answers
78 views

Sharing a SAN LUN across 2 clients

I have an ISCSI SAN that we purchased to store images for our cluster (2TB of images). After reading, we probably should have gone with a NAS rather than a SAN, but back to the point. I'm going to ...
1
vote
1answer
34 views

Veritas and VNX LUN Expansion

I have an EMC VNX Storage array and a front end Linux server running Veritas. A 4TB lun has been assigned from a diskpool on the VNX and presented to the server where Veritas has split it out into ...
6
votes
1answer
90 views

IQN Naming convention

I've seen a lot of information about how IQN's should be formatted, but there's not a lot of information on how to build them. I'm kind of a newb when it comes to iSCSI, and i have it working, but I'm ...
1
vote
1answer
88 views

Building a SAN on 2012R2 “Storage Spaces” - More Cores, or Faster Single Thread?

I am considering building a SAN unit on Server 2012R2 using Storage Space. In that situation is it more helpful to have more CPU cores, or less faster cores?
2
votes
1answer
156 views

XenServer Linux guest booting off iSCSI SAN (ZFS storage): Will a non-checksumming guest file system still be at risk?

We are storing files on FreeNAS 9.2 using ZFS. I love the data integrity claims made by ZFS, having randomly lost data in the past on servers using ext3, XFS, and ReiserFS that were not mistreated ...
0
votes
2answers
128 views

qle2462 target mode on redhat 6

i have a solaris server with 40tb of data on it that i need to get moved to another linux server. i bought 2 qlogic fiber cards both are qle2462 and put one in the solaris box and the other in the ...
0
votes
0answers
59 views

Intransa Server Failure/Software

Our agency has an IntransaBrand VideoAppliance storage server. It is currently running a Windows Vista client on server equipment and has 2 RAID arrays. One is a RAID 5 (4 x 2TB Western Digital ...
4
votes
1answer
170 views

ESXi 5x: Changing number of IOPS per path sees dramatic improvements

I'm a bit embarrassed that I've never seen or used the -iops parameter as part of the esxcli deviceconfig options. I stumbled upon an article and proceeded to benchmark before and after using various ...
11
votes
4answers
646 views

Disk Speed Performance in a SAN

We are currently looking into buying a SAN, and have some concerns over the speed of disks we are going to put into the array. We would normally have gone for 15k disks over 10k every time, but one of ...
0
votes
0answers
104 views

Destination Folder Access Denied error when accessing SAN share (EMC Celerra File Server)

There is a shared folder hosted on an EMC SAN to which Everyone has Full Control to the share's root. The SAN's Administrators group is set as the shared folder's owner. Beneath the root are a number ...
0
votes
2answers
110 views

Mount NTFS volume on two different servers

We mounted an NTFS volume on two Windows 2008R2 servers. This volume is on a MD Dell storage array, connected to servers with Fiber Chanel. It worked a while, but now we get some errors like ...
4
votes
1answer
222 views

Is it possible to measure HBA throughput using Perfmon on Windows Server 2008 R2?

I have a server with two round-robin 4GB HBAs to a fiber switch and was wondering if I can measure activity/throughput on these HBAs using Perfmon? If so, which counters would I use? I initially ...
1
vote
0answers
48 views

What technical issues should I be aware of when re-mapping a LUN from one host to another?

I inherited an IBM System Storage DS4000 SAN with an AIX environment running Oracle RAC (3 nodes). One of the nodes crashed, so I got the system up and running with 2 nodes; however, the node that ...
2
votes
1answer
479 views

XenServer 6.1 Reports Wrong Storage Amount in XenCenter

We're using XenServer 6.1 Advanced on three blades in a pool. I'm in the process of moving storage from an old SAN to a new SAN using Storage XenMotion. So far, so good! I discovered though, on a LUN ...