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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What kind of operating system SAN device can have?

Ciao, I don't understand does SAN device have an operating system? I know it is connected to servers in data center by san switch and it provides data drives to the servers but how the server ...
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RAID 0 for Development

Hello fellow administrators, I am seeking high level guidance on the following situation: First the context of the environment: internal, all virtual (vmware), development use only, performance ...
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How does SAN provides block access to data?

I was reading about file storage and that lead me to SAN. I read about SAN and that it provides block access to data. I was looking for these concepts in some video, where the guy creates a VM on some ...
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Best Practice: Ansys FEA Output Data Storage

I'm trying to make this as least subjective as possible by providing finite inputs and parameters. I truly want to know what is the most resource affective, given the constraints. Given my available ...
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DS3400 - no access - only ping via management ethernet port

This is my first post, so sorry if I `ll miss something My task is to collect data from few years old DS3400+EXP3000 ( it was disconnected from power last 2 years). After starting it on front panels ...
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Can we mount single SAN block level storage are on two separate VMs having different OSs

We have one VM having HP-UX, on which a storage area is already mounted from SAN as block level vxfs. We need to share the same storage area on another VM in real-time read-only mode but we can only ...
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How to get my HPE 3PAR Raid Configuration info from Management consol

I am working on HPE 3PAR Storage system. Now I need to know my RAID configuration information. I can't find it into the management consol. can anybody help me to figure out? how can I identify my ...
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519 views

Best free software solution for homemade iSCSI SAN [closed]

I currently have a NAS running ZFS on Ubuntu but have recently changed my main windows software to pool local drives using Stablebit DrivePool. I cannot include networked drives in DrivePool unless ...
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Diskspd testing decision support

I inherited a decision support environment, which I have issues related to disk slowness in VMWare/SAN environment. the data filegroup contains 4 datafiles with each datafile on a SAN logical volume. ...
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1answer
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NFS: Single filesystem mount versus multiple mounts of sub directories

We have a file server (fsrv1) that has a 3 mounted XFS filesystems /srv/xfs{1,2,3} each with 3 top-level directories: /home, /scratch and /project. What is the preferred approach to mounting this on a ...
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SAN Connectivity Extension from one Building to Other with 350 Meters distance Recommendations

We have two Data centers, DataCenter-A has all the Backup storage, Datacenter-b has critical servers, We need to backup Datacenter-b Servers via FiberNetwork. We have Brocade 300 Switches on DC-a &...
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“Bad message” with a new SAN using multipath and iSCSI

I'm configuring a new SAN for a set of Ubuntu 18.04-based servers. Each of nodes can mount the ext4 formatted partition fine. Being new to both multipath and iSCSI, I'm not sure if what I'm seeing is ...
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Multi domain SSL shows all the domains publicly

We have generated Multi-domain SSL for my clients but when visiting any client site If we click on the lock icon and navigate to certificate details can see other client domain names in the subject ...
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can I share the same datastore between different VMware 6.5 clusters?

Is it possible to share the same datastore between multiple VMware clusters of the same version (both 6.5 or both 6.7)? It is the norm to share the datastore between multiple hosts in the same ...
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Should i partion 100% of my san's HDD's or leave some unused?

I am new to posting here but have been reading and utilizing your extreme brains over the years so Thank you all for being so generous!! I just bought a new Synology NAS for my domain and i am ...
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Kubernetes cluster shared storage and backup solutions

Which shared storage solutions are common for Kubernetes cluster to implement shared storage persistence for containers? NFS on NAS / iSCSI somehow? How do you backup the data on a Kubernetes with ...
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Can I dynamically expose an entire SCSI host over Fibre Channel, preferably in Linux

Is it possible to expose an entire SCSI host dynamically (an LSI HBA or RAID card) over Fibre Channel, if so how? Preferably on Linux (perhaps targetcli) and with disk hotplugging support. (i.e. ...
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What differences are between a NAS, a shared disk file system on a SAN, and a distributed filesystem?

https://en.wikipedia.org/wiki/Clustered_file_system#Network-attached_storage says Network-attached storage (NAS) provides both storage and a file system, like a shared disk file system on top of a ...
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Linux goes to swap while plenty of RAM installed

I have a linux box that is used as SAN storage. It is equipped with 14 SATA HDDs and the only software it run is iscsi target and zabbix agent. This is physical box, not VM. The RAM size installed is ...
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SAN volumes not showing in new cluster

Some background.... We have Two hyper-v hosts running server 2012r2 with a number of guests. Msa1040 SAN with two disk pools The hosts are a two server cluster The two hosts connect to the san via ...
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3PAR 7400 cli setup

Unfortunatelly we don't have a GUI so we use cli. How to allocate physical disk space to free space? I tried servicemag, admithw,admitpd cmd but freespace (showspace) is equal 0 3PAR01 cli% showsys ...
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Configuring MPIO on Windows to remove duplicate disks

We have shared some storage from a EMC Unity SAN to Windows Server 2012 R2 to use with Veeam. In Disk Management, there are multiple disks listed with the same size. From previous systems, this is ...
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118 views

Securely delete individual files from virtual drive on SAN

We have a Windows Server guest OS running on vSphere which has logical drives that ultimately reside on a 3PAR SAN. An auditor has suggested that after deleting sensitive files on the VM, we should ...
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How to Expand Server Storage to Dell PowerEdge With a SAN?

I have recently bought Dell Poweredge T410 server with a Perc 6/I RAID controller to get some hands on experience  with server hardware and play around with Windows Server OSs. I've been looking at ...
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679 views

The driver detected a controller error on \Device\Harddisk0\DR0 on a virtual machine

The event in question is generated by a virtual machine. The disk 0 is a scsi connected drive to the virtual machine. The vhdx file is in the hyper-v cluster which has the storage from SAN cluster. ...
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2answers
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Mount NTFS Partition on two Servers - Just one will have RW access

I want to configure my san to present a disk to two windows servers, i would present it one time as RO and to the other Server as RW Will the windows servers have a problem with this setup?
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IBM 2005-16B switch console cable

I have an IBM 2005-16B switch, and it has a male serial connector on it, and I want to use that to configure the device. I also have a usb to male serial cable, and I have recently created a null-...
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Two Windows servers in SAN

I have two Windows 2016 servers with QLogic HBA. Servers connect to a Brocade SAN switch. Servers can ping fabric via QLogic FC ping utility. But one server don't see the other. In "Target list" in "...
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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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258 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
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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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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 ...
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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, ...
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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
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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 ...
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75 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 ...
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1answer
246 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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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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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 ...
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1answer
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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 ...
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3answers
232 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 ...
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1answer
445 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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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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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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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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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-...
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1answer
291 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 ...
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1answer
56 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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3answers
310 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 ...
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1answer
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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 ...

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