Questions tagged [storage-area-network]

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

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2
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3answers
186 views

Boot Windows from SAN

Am not so familiar with Storage. I have some questions around running Physical and Virtual Machines with SAN for Storage. Is it possible to boot OS from a SAN Storage attached to a Physical Server? ...
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1answer
18 views

Can a HP P2000 G3 SAN with SAS controller direct connect to a Dell PowerEdge Server with a Dell brand HBA [closed]

I am building a home rig and have recently acquired an HP P2000 G3 SAN with SAS controllers. I appreciate these are supposed to connect into a DL380 G7 or G8 with the HP branded SAS interface card (...
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1answer
28 views

Install FREENAS on ORACLE SUN SPARC T5240

is possible to install FreeNas server on Sun Sparc Enterprise T5240 (Hardware compatibility),and how to do that? Thanks
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0answers
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how to discover the added group without rebooting in fc san?

Envs: Client A: Windows、 qlogic-qle2460、 SANsurfer FC HBA Manager Server B: Linux、qla2x00t、scstadmin A and B are connected to the same fabric switch. When I create a group for host A on host B, ...
6
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3answers
365 views

iSCSI, multiple initiators for the same LUN

I have a web application that is distributed over 3 servers. These 3 servers need a shared storage to access files. Since iSCSI is just a protocol, not a filesystem, it will not have any ...
2
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1answer
164 views

PAGE_FAULT_IN_NONPAGED_AREA when booting Windows 10 from iSCSI network drive

I am trying to set up Windows 10 for diskless boot via iSCSI, as described, for example, here or here. I am able to run the Windows 10 installer to install Windows on the target iSCSI drive. However, ...
1
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1answer
36 views

dell md series device specific module for multi-path failed to return a path?

We have a Dell PowerVault 3620f (fiber) and I am getting the following errors in the Windows event log. I am no good with fiber zoning so I would need to pull in someone to take a look but figured I ...
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2answers
50 views

ISCSI and SAN scaling

The Problem: I have a photography studio, and I ran into a problem when I just ran out of space on a monthly basis. Every month I just purchased additional HDD for a file server. now I have approx 120 ...
0
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1answer
30 views

Veeam Hyper-V Cluster Off-Host Backup Proxy

I'm creating a new HPE configuration for a Hyper-V cluster. Need also to consider Veeam and Off-Host Backup Proxy. This might be a silly question, but considering HPE MSA 2052, does it make any ...
0
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1answer
50 views

Best practice to present storage to KVM guest VM for storage server for iScsi target

Hi I'm building out a storage sever that will consist of a KVM Fedora-Server host with a Fedora Server guest VM. I have a 20tb SSD Raid 6 array that I want to act as my storage target ultimately this ...
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0answers
25 views

Seeking iSCSI file copy flow clarification

I'm trying to diagnose a slow file copy issue but am a bit perplexed by the "behind the scenes" flow of data and am looking for clarification. The server in question is a Windows 2012 server and it ...
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2answers
36 views

Fastest solution to use FTP/Aspera/MediaShuttle with SAN network

At my postpro studio we have a SAN Network (Stornext 6). There is also a MediaShuttle and FTP server in a VM on the firewall (I know, I know... Not my fault, really xD). The VM is sharing SAN over ...
3
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1answer
63 views

MPIO on Win Server 2k16 w/ EMC Unity

I have two Dell R630's running Windows Server 2016, slated to be Hyper-V hosts but not yet clustered, attached to an EMC Unity array via fibre channel through a pair of Brocade 300 SAN switches. The ...
3
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3answers
70 views

Understanding Disk Array Availability

I'm new to this thus I'm trying to understand about calculating Disk Array Availability (DAA). What I have understood so far is that availability is always 1, and Failure = 1÷MTBF, and that is all I ...
0
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1answer
100 views

CEPH for video streaming? [closed]

So i have a video streaming app (HLS) and was wondering if using CEPH or GlusterFS would be a good idea vs using plain SAN storage? (from performance prospective) In general is software defined the ...
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0answers
18 views

Mount the Vplex Virtual Volume ( LUN ) Xen Server

Hello ServerFault members, Please help me with this issue. I am in very strange situation with my Xenserver environment. I am trying to mount the Dell EmC ( Vplex LUN ) to the Xen server HA and when ...
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0answers
16 views

Windows Server guest changes and ramifications after being migrated to SSD?

This particular environment, it's VMWare guests that have been moved to all-flash SAN, but that shouldn't be particularly relevant. I'm quite familiar with >winsat formal from SO questions like ...
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0answers
21 views

Dell EqualLogic PS6010E Network Setup

We recently got a PS6010E and going through setup, I put in all the IP info we are planning on using, and when I get to the part where it says to go to http://[group-ip-addr], I am unable to connect. ...
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0answers
13 views

3par OS location

As a complete 3par Newbie I have a simple question about the OS of the Storage-System. Is the OS on a 3par stored on it's controllers or on Disks like in some EMC-Models. When I have an empty 3par-...
2
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1answer
47 views

Figuring out how storage is configured to Hyper-V cluster

I am presented with a Windows Server 2016 Hyper-V cluster (2 nodes) and the nodes are connected to an HP MSA 2040 storage (SAN?) with direct fiber connection. I am trying to figure out how the ...
2
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1answer
33 views

What is difference between path and connection in iSCSI volume?

we have connected few Iscsi volumes. When we execute Get-IscsiConnection it shows connection between target IP address and initiator IP address. But when we execute mpclaim.exe -s -d It ...
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0answers
155 views

Windows Server 2016 UEFI Boot issue

I am trying to get a fresh install of Windows Server 2016 working on UCS B-Series blade with UEFI and boot from SAN and seem to be hitting a brick wall. The OS installs and I can see the Windows Boot ...
3
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3answers
127 views

Ubuntu Linux - Shared VHDX

I have two Ubuntu web servers using a shared Hyper-v vhdx file in a Hyper-V cluster as a data drive because the Nimble SAN does not support NFS Connections. However, while both servers are able to ...
4
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1answer
61 views

How to do Iscsi deep discovery?

In our storage array we change the discovery IP. Once the discovery IP is changed, the Multipath connection has to be rebalanced (It should make connection again with new discovery ip). But it is not ...
3
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1answer
70 views

How to find which MPIO path is being used for IO?

We were experimenting MPIO with our Storage array. We saw the Get-Iscsisession and Get-Iscsiconnection cmdlet to find the paths created. But during IO ,i would like to know which path has been used. ...
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Spinning up disks in FC shelf

I own an Engenio 4600 FC shelf, which works apart from flaws regarding missing diagnostics pages quite well as a JBOD in combination with Linux and ZFS. The only problem I need to solve is if I ...
3
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1answer
145 views

How to check Unmap event in windows server 2012 R2?

We have created few volumes in storage array. Via Iscsi initiator those volume have been added into host machine which is Windows 2012 R2. For few volumes when we delete the contents ,the volume size ...
2
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3answers
164 views

Which RAID level for virtual machines in SAN

I have Dell EqualLogic PS5000E iSCSI Array. I have connected this SAN in servers directly. I used Jumbo Frames. In this case, everything is ok. My storage is ~25TB. Now, I need to choose, which RAID ...
8
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1answer
1k views

Using non-certified hard drives in Dell MD3220 storage array

Is it possible to use non-certified hard drives in a Dell MD3220 storage array? I ended up getting 3 new drives that were the EXACT same model number as the existing ones. Then I bought the drive ...
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0answers
218 views

fsck.ext4 complaining that the device is in use. Can't find what exactly is using it

Our setup is a 3-node RHEL 7.3 bare-metal Kubernetes cluster running on Docker. We have a multipath FC SAN block device discovered on all three nodes. This device is used as a Kubernetes Persistent ...
1
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1answer
181 views

How to find if FC-Switch using port-zoning or not Brocade FC 300

I have to replace a HBA on RedHat5.3 due to card failure. A tech guy asked me that "Check your FC-Switch Zoning Type of Port Zoning or not? , because if host accessed by WWNN, you'll need to update ...
0
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1answer
99 views

Dual SAN controller failure [closed]

I am new to storage but facing a serious disaster issue of the failure of Dual SAN Controller. Don't know whether this is a right place to ask this question. Anyways the problem is, None of the ...
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1answer
31 views

steps to troubleshoot server when it fails to attach and mount LUNs

How to troubleshoot when Windows Server 2012 R2 connected to SAN via iSCSI fails to attach and mount the LUNs from the iSCSI target
3
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1answer
74 views

Does data reduction work cross datastore?

I am the proud owner of a Unity 400F all flash SAN connected through FC. I have multiple datastores setup for my vm infrastructure and I was wondering if data reduction (what EMC calls their combined ...
1
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1answer
54 views

Unused switch ports in Fabric (brocade)

I am very new to storage but we are having trouble with performance on our SAN. While troubleshooting I found that one of our switches in the fabric (1 HP C7000 with 2 flexbric interfaces connected to ...
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0answers
132 views

Xen pool upgrade from 6.5 to 7.6

We are running a XenServer pool on an IBM BladeCenter S with 4 HS22 blades installed. 3 of the blades are in a pool and the fourth not. The blades have no internal storage and all get it from the ...
0
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1answer
90 views

Clean LUN on HP MSA P2000 G3

I am trying to deploy a self-host oVirt Engine on a SAN HP MSA P2000 G3 LUN. I created a Vdisk and a volume via the Storage Management Utility (SAN GUI). The volume is already containing data because ...
2
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5answers
460 views

SAN storage in Google Cloud

If I need to move a 100TB SAN (block) to GCP what are the options we have? As per my understanding it has to be a persistent disk. But current max limit per disk is 64TB. So I will need two disks. But ...
2
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0answers
10 views

moving 4g AIX server to 6520 brocade switch, i/o errors on host [closed]

Recently tried to move several HP Unix (AIX) servers from an old 5300 brocade switch fabric to new 6520 brocade fabric. The old zones were inactivated and old storage port id's were kept intact for ...
0
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2answers
547 views

Reclaim deleted space on SAN from thin provisioned LUN with zeros on Windows

Dear Data Storage Experts, We are using a SAN attached thin-provisioned LUN on Physical Windows machine from a storage vendor. Storage chargeback is based on high watermark (deleted space not ...
1
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1answer
284 views

Compatible hard drives for Powervault MD3000i

I recently acquired a Powervault MD3000i with several hard drives already installed, and was looking to see if it were possible to purchase additional hard drives without going directly though Dell. ...
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1answer
21 views

Setting up VM's with a SAN

I am currently in the Process of virtualizing my infrastructure setting up a SAN As well as a complete replica as a DR site. I have purchased the following Equipment (plus all other needed equipment) ...
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1answer
297 views

Why multipath devnode change after reboot?

As I command multipath -ll, the output show like this. ocr3 (149455400000000000000000001000000ca0200000d000000) dm-9 IET,VIRTUAL-DISK [size=980M][features=0][hwhandler=0] \_ round-robin 0 [prio=0][...
3
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0answers
232 views

FreeNAS iSCSI use - recommended percentage?

I have set up a FreeNAS system on a Dell R310 server with 4x4TB drives on a cross-flashed H200 controller in FreeNAS' own RAID10. I want to use that storage entirely for VM containers that run on ...
1
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1answer
5k views

SAN: FC vs SAS vs iSCSI

I am currently preparing for an exam. I thought FC (Fibre Channel) was the transport protocol for SCSI and SAN. But now I read, that you have to decide if you want to use FC (SCSI), SAS or iSCSI in an ...
1
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1answer
745 views

Configuring a DELL storage array with both controllers set to the same address

I've gotten hold of a used Dell PowerVault MD1000 with two MD3000i (aka AMP01) controllers, both of which are configured to the same address. However my attempts to configure them - or indeed perform ...
0
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1answer
845 views

Docker Swarm iSCSI

I'm currently trying to setup a HA infrastructure capable of hosting a Symfony APP. This project is for school purposes. The requirements are the following : We have to use a SAN based model to ...
4
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2answers
2k views

How to configure StarWind Virtual SAN Free

I tested my environment during the 30 day trial and really liked it but now I want to make it work with the free version. I started over and followed these walk-through from Starwind Creating HA ...
1
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1answer
40 views

Recovering partly overwritten LVM

We had multiple servers connected to a SAN (via Fiber Channel) to run Proxmox (a KVM solution). One of the servers needed to be reinstalled so we let it perform an automated install (via kickstart). ...
4
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1answer
265 views

Mapping SAN to cluster nodes

I have mapped a block of space from SAN to 3 cluster nodes (2012r2)as below: 2 ports from each node have been mapped to the same share on SAN for redundancy. MPIO has been configured on all nodes SAN ...