iSCSI - SCSI over IP - mount disks across the network

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Windows 2012 iSCSI Storage Clustured SAN for Video Editing [on hold]

I just wanted to deploy a Central storage for video editing using windows 2012 server; Just an idea if i have server with 30TB raid storage available and i create a volume using iSCSI target server ...
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31 views

What is the proper way to shutdown an iSCSI target with connected clients?

iSCSI with two DRBD primary nodes is a bad idea to use if the two paths get concurrent write requests. But I am thinking about using this idea as backend storage for an ESXi 5.5U2 host. I already did ...
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1answer
20 views

VMWare 4.0 - Adding LUN from Server2012R2 iSCSI Target - Capacity 2TB, Available 102.40GB?

I have a Windows Server 2012 R2 hosting some iSCSI targets/LUNs from a local raided JBOD via Virtual Disks. I have created a thin provisioned 2TB VHDX in Windows and have added the target to VMWare. ...
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1answer
33 views

Optimal configuration with Synology as HA iSCSI backend for vSphere

I'm looking into purchasing a new storage backend for our VMware vSphere Essentials package. We have 3 ESXi hosts, currently mainly using DAS. The goal is to upgrade to Essentials Plus this year, to ...
2
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2answers
57 views

What trouble will I have when running a SAN past its support lifetime?

We are replacing a Clariion CX320 SAN because it is old (7.5 years). It has been otherwise very reliable. Yes, we have replaced a lot of disks, battery modules, and maybe even one of the ...
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21 views

Windows Server Backup does not seem to be able to backup iSCSI drives

Windows Server Backup does not seem to be able to backup iSCSI connected disks! Error returned if using volume descriptor is: The path specified by ...
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2answers
58 views

Debian 7: HA NAS with pacemaker, drbd and iSCSI

I currently am trying to make a highly available NAS under debian 7. I am using following packages: drbd8-utils iscsitarget iscsitarget-dkms pacemaker corosync ...
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68 views

iscsi not working after host reboot

I have a host that is acting as both an iscsi initiator and target. It's an OpenStack box that acts as both the storage node (cinder) and also as a compute node. There is also another compute nodes on ...
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49 views

Best practices in connecting EMC VNX iSCSI storage [closed]

We have an EMC VNX5200 with 2 service processors, each having 4 iSCSI ports, 1 data mover (with 4 ports) and a control station, all of which is plugged into two stacked switches. What are the ...
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1answer
42 views

Hyper-V 2012 R2 and File shares

I currently have a 2008 R2 hyper-v cluster but I am going to be building a new 2012 R2 failover hyper-v 2012 r2 cluster in the next few weeks and wanted to get some opinions on running a large file ...
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27 views

Virsh pool-info shows no space free on iSCSI pool

I have an iSCSI target configured on FreeNAS 9.3 (zvol backend). I also have a linux KVM machine where I'm trying to create a virtual machine using the iSCSI disk. On my linux KVM machine I can ...
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36 views

How does Xen Server share iSCSI?

When I create a resource pool of multiple XenServer hosts, add an iSCSI storage repository, how do the separate hosts orchestrate access to the iSCSI storage repository? To be clear, consider if I ...
0
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1answer
67 views

Windows 2012R2 hyper-v guest diskless - boot from iscsi guide?

I am attempting to build a generation 2 W2012R2 hyper-v server guest that, configured with no disk or vhd , will select it's iscsi o/s disk via Microsoft dhcp and boot Windows 2012 R2. Note that I ...
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53 views

Can't mount read-write iSCSI with MTU=9000

I'm attempting to connect my desktop (running debian 7) to a QNAP NAS (running QTS 4.1.1) using iSCSI with an MTU=9000. The network infrastructure consists of a cat5e crossover cable between the ...
2
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1answer
76 views

High availability using Fibre Channel and iSCSI in vSphere

I'm having a hard time understanding shared storage for high availability in vSphere. I have the following kit: 1 x Mac mini (ESXi 5.5 - part of vSphere) 1 x White box PC (ESXi 5.5 - part of vSphere ...
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20 views

vSphere 5.1 and iSCSI multipathing

I have a problem in configuring vSphere Cluster with iSCSI multipathing. Host in cluster have four physical interfaces. Host have four vmk interfaces for iSCSI, which mapped to individual physical ...
0
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1answer
21 views

iscsiadm discovery gives this error: “Try `iscsiadm --help' for more information.”

Many sets of instructions (e.g. Softlayer) provide this command for discovering a new iSCSI device: iscsiadm –m discovery –t sendtargets –p 255.255.255.255 The man page for iscsiadm gives this ...
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33 views

iSCSI Volume disappears from physical server during windows backup

I've got a Windows Server 2008 R2 box that I back up to an remote iSCSI volume via Windows server backup. I use Microsoft's iSCSI Initiator and Target software on both the Local machine and the remote ...
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29 views

fdisk -l do not detect device accessed using iscsi o XEN virtual machine

I am experiancing an issue in accessing the iscsi target in VMs created on XEN hypervisor. I have used Suse 11 SP3 to configure this. After discovering the iscsi targets from VM , I am able to view ...
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270 views

Windows Server 2012 R2, iSCSI Target Server 80 diskless clients, hanging failures hangs and whatnot [closed]

I have bitten way more than I could chew. Recently purchased a 80 diskless PC Internet/Gaming Cafe. The running system was cracked CCBoot, which at first seemed like caused random hangs, which ...
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27 views

Find out /dev/by-id/wwm path using targetcli (LIO)

To mount my diskless iscsi I am using the /dev/by-id/wwn-0x1234567... devices. The server in question is using ILO and administrated by targetcli. I seem to unable to query the WWN in targetcli the ...
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30 views

Running iSCSI LIO with high availability

I've build a two node storage setup with OCFS on top of DRBD to provide storage for a couple of ESXi servers. Will it be possible to setup iSCSI targets on both storage nodes and make one of the nodes ...
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838 views

iSCSI connection drops frequently - Synology NAS

I have a Windows 2012 R2 Server connected through iSCSI to my Synology Rackstation 2414+. The problem is that the connection drops very very frequently, up to 10 times a day (manually restored ...
0
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1answer
66 views

Ubuntu, iSCSI LIO listen on any IPv4

I've installed targetcli from repo on my Ubuntu 14.04 server. I'm trying to figure out how to make the service listen on any (0.0.0.0) address. Trying to setup 0.0.0.0 specific gives me an error: IP ...
3
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1answer
349 views

Backup Hyper-V VMs using wbadmin and iSCSI on Windows Server 2012

I am trying to setup a backup system at my work. We have an Windows 2012 environment with some VMs. We have a SAN and I tried do backups on a shared folder but, because of some incompatibilities with ...
0
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1answer
282 views

Proxmox virtual machines and iSCSI NAS

I ordered a dedicated server from a certain service provider and they rent out iSCSI NAS as well. So I ordered 1TB iSCSI and connected it to proxmox via GUI. Then I read that the provider does not ...
3
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1answer
319 views

Shared access to iSCSI target

Does anyone know how shared access (multiple Initiators) to a single iSCSI target is supposed to work. I have got it semi-working with Linux (CentOS-7) target and Win 2012 server / Win Hyper-V 2012 ...
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2answers
195 views

iscsi with multiple lun, how linux to connect only selected lun

My 10.1.1.100 have 10 Targets. I'm initially connected to single Target by running iscsiadm --mode node --targetname iqn.2005-06.com.drobo:b800i.1112.id5 --portal 10.1.1.100:3260 --login It only ...
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1answer
163 views

Persistent Disk Name in RedHAt Cluster on VMWare Workstation-10.01

I am trying to implement a 2 Node REDHAT HA cluster. The following is my environment. VMWare WorkStation 10.01 Node-1 >> CentOS-6.3 x86_64 Node-2 >> CentOS-6.3 x86_64 Node-3 >> CentOS-6.3 x86_64 [ ...
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1answer
49 views

Xen cannot see all the LUNs in ISCSI HP StorageWorks MSA2312i Dual Controller Modular Smart Array

I have a HP StorageWorks MSA2312i Dual Controller Modular Smart Array and a second enclosure. I have four vdisks: vd01 (RAID5) (Current Owner A) vd02 (RAID5) (Current Owner B) vd03 (RAID10) ...
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3answers
930 views

Why should iscsi traffic be isolated?

Why should iscsi SAN traffic be isolated? I'm trying to explain to my network guy why we should isolate the traffic.
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136 views

Windows Server Backup to iSCSI target 10x slower than copying a file using Windows Explorer to the same location

I'm running a colocation server with Windows Server 2008 R2. As a backup target, I'm using a Linux server run by the datacenter provider. The storage is addressed via iSCSI so that I can use Bitlocker ...
0
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1answer
206 views

Deploying iSCSI Diskless Clients via WDS

I am trying to install Windows 7 to iSCSI targets that will be booted by diskless clients via iPXE. To do this, I need to setup .wim boot and install images in WDS. Is there a way to create standard ...
3
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1answer
81 views

Properly ordering shutdown of MySQL and iSCSI on Ubuntu Lucid

I'm running MySQL on an Ubuntu 10.04 server, with the MySQL $datadir located on an iSCSI volume. The filesystem is tagged with "_netdev" in /etc/fstab. On system shutdown, upstart sends MySQL a ...
3
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1answer
317 views

Is there any downtime when expanding a volume on an iSCSI setup using Synology Hybrid RAID?

The subject sums up the scenario. I believe the answer is there is no downtime but the system might simply be slower during the rebuild. Which is fine. But if there is downtime, how long? A small blip ...
2
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1answer
334 views

Cluster-Shared Volume on Windows Server 2012 R2 drops off with minor iSCSI pauses

We are running into an issue here where the Cluster-Shared Volume attached to our Hyper-V 2012 R2 cluster is being dropped off / faulted with the slightest interruption from the iSCSI SAN connection ...
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42 views

iSNS Best Practices

I am looking into deploying an iSNS server to simplify deployment of a new iSCSI infrastructure for a client of mine. I feel that I understand what iSNS does and how to configure it, but I'd like some ...
0
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2answers
84 views

XenServer move VM Failed

We currently are running our XenServer virtual machines off of an over extended Drobo unit and wanted to migrate a particular 600+GB VM off of the Drobo onto a newer Drobo, so I attached a storage ...
0
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1answer
85 views

iSCSI paths are alternately active and dead after connecting second ESX server

Multiple Virtual Machines (VMs) reside on an ESX server (ESX1) and are stored on iSCSI. Connecting a second (ESX2) to iSCSI seems to work fine as a VM is created and stored on iSCSI. However inactive ...
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2answers
272 views

iSCSI SAN RAID 10 Performance — Poor Read, Good Write

I have a EqualLogic PS4000 SAN unit with the latest firmware, setup in RAID 10. I have 3 2TB Volumes on the SAN shared out via iSCSI on 2 eth ports on two different subnets. I have moved a test server ...
0
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1answer
112 views

sg_map & lsscsi showing old storage version

I am using SUN storage and recently upgraded/refreshed my ISCSI LUN storage. We have replicated old storage to new storage and attached to our servers. I can see at SUN storage side that storage is ...
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0answers
85 views

iSCSI remote boot from intel NIC working in vmware ESX, not other distro´s

The objective is to have a completely diskless Centos connected to storage via. iSCSI over a 10Gb intel X540 NIC. The ROM on the NIC is flashed as initiator and tailing the logs on the target, i can ...
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2answers
316 views

What is the maximum number of iSCSI connections that Server 2012 R2 can initiate?

I found online that Server 2008 R2 host can only initiate a maximum of 255 iSCSI connections, and that it was a hard limit within the OS itself. Does this same restriction apply to Server 2012 R2? ...
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2answers
69 views

Setting up a multi-host SAN

I'm looking for some advice on setting-up multi-host I/O access on our SAN: I have a blade enclosure (PowerEdge1000e) containing an Equallogic PS-M4110 storage blade with a single RAID6 volume ...
2
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1answer
157 views

iSCSI: HP MSA 2012i, initiator only discovers one target

I am trying to configure my HP MSA 2012i such that every disk is a vdisk and every vdisk is a volume. Each volume shall be accessible using iSCSI. So each volume shall be a iSCSI target. This is not a ...
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2answers
268 views

Dell Equallogic PS5000E Multipathing Extension Module for VMware vSphere required even if storage is not presented to ESXi?

Single Dell Equallogic PS5000E array, fw 7.0.5, dual controller, NIC0 and NIC1 on each controller are on the iSCSI VLAN, NIC2 on each controller is on the management VLAN. VMware vSphere 5.5, ...
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1answer
403 views

Windows 8.1 / iSCSI / Hyper-V Depedencies

My workstation has Windows 8.1 and uses iSCSI for SAN storage, which is where the Hyper-V configuration and VHD files sit. When the workstation is booting up, the VM is not able to auto start because ...
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1answer
162 views

VMWare - Jumbo Frames over iSCSI to a NAS4Free array

I am having problems getting Jumbo Frames working over my iSCSI connection. Here is what I try. 4 1GbE connections on 4 different subnets on my NAS4Free array for iSCSI, MTU set at 9000 2 redunant ...
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52 views

Creating file server failover cluster

I'm in the process of setting up a new file server cluster with a shared iSCSI disk. I've been through the setup of iSCSI and MPIO and the disk has been initialized, formatted and brought online. ...
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2answers
144 views

What could be wrong with my XenServer iscsi configuration after a recent power outage

We just experienced a power outage due to a lightning storm. Outage was long enough to restart servers and switches. We have 2 XenServer hypervisors running in the same pool. At first, both of them ...