iSCSI - SCSI over IP - mount disks across the network

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3
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0answers
1k views

Unable to discover iSCSI targets

I have a trio of CentOS 6.4 machines that I'm trying to configure to use iSCSI. Basically two different initiators talking to two different targets on a single host server. On one machine, "the ...
0
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0answers
247 views

VDI size limited to 2TB in Citrix XenServer 6.2

I would like to know if it's possible to create a VDI greater than 2TB with Citrix XenServer using LVM over iSCSI. This limitation is not viable in a virtualized repository server. There's any ...
-3
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1answer
396 views

Setting up iSCSI on an external hard drive with 4K sector size [closed]

I have a WD My Book 3TB external hard drive connected to a Windows Server 2008 R2 machine. I'm trying to make that machine an iSCSI target. Everything is set up, but I can't create a virtual hard disk ...
-4
votes
1answer
260 views

iSCSI drive running at 100% but SAN and Network are not [closed]

We have a virtual server running on VMware. This virtual server has a number of iSCSI drives attached to it (E, F & G drives). It has 2 virtual NICs - 1 for normal network traffic and 1 for iSCSI. ...
4
votes
1answer
291 views

iSCSI TGTD over InfiniBand Performance

I have just configured a server-to-server 4x SDR InfiniBand link to increase bandwidth for the backend storage of my virtual machines, specifically a database server. I am using iSCSI with TGTD on ...
2
votes
2answers
278 views

iscsi slow read speed

we are currently experiencing very slow speeds when copying a huge file (35GB+), to our surprise it starts off at a very high transfer rate 300MB/s, then drops to 4MB/s after 10-20 seconds into the ...
1
vote
2answers
572 views

Can I run vMotion traffic over iSCSI network ESXi 5.5

Is there anything wrong with using one vmkernel in a multipathed iSCSI setup for vMotion traffic as well as iSCSI? I have iSCSI storage setup using 2 vmkernels for MPIO. I'd like to use one of those ...
1
vote
4answers
779 views

Shrink NTFS Partition Windows 2003

We have an iSCSI target provided by a CentOS server attached to a Windows Server 2003 Standard box, formatted in NTFS. My question is this - I know we can resize the backend block device fine (LVM et ...
29
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3answers
5k views

Tuning iSCSI storage

This is a Canonical Question about iSCSI we can use as a reference. iSCSI is a protocol that puts SCSI commands as payload into TCP network packets. As such, it is subject to a different set of ...
2
votes
1answer
1k 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 ...
2
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1answer
137 views

Why is my iscsi device causing my CentOS server to fail to boot?

The iSCSI mount I have attached to a CentOS server became unresponsive and caused the CentOS server to lock up. When the iSCSI server was repaired the CentOS server was rebooted, but even though iscsi ...
0
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2answers
2k views

Basic iSCSI target setup on Proxmox VE (Debian 7) not working

I have created a Linux LVM partition on my disk and want to share it over network via iSCSI. However, the target is unreachable with iscsiadm (from both local and remote). The setup is shown below. ...
1
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2answers
202 views

Is VLAN separation required for multiple networks?

I am setting up a Dell 6248 combining separate switches used previously. I am planning the following architecture: VLAN 1 - External traffic (each server's public interface connects to this) VLAN 2 ...
2
votes
1answer
419 views

AWS Storage Gateway without the “on-premises” part?

The use cases for the AWS Storage Gateway always seem to assume that the virtual storage gateway would be installed on-premises (i.e. local to the customer) and would then be synced to AWS. I am ...
0
votes
1answer
643 views

iSCSI Target drive turned RAW format

I have an iSCSI Target drive that was working fine after creation for a few days. After i copied about 40GB of data to it i lost access to the drive. the file system had changed to RAW and windows ...
1
vote
0answers
420 views

windows2012 failover cluster + storage. Considerations

We plan to build a failover storage with Windows2012r2. There will be 2 or 3 physical machines with 2 virtual machines on each server. One virtual machine building a failover, second one being storage ...
2
votes
0answers
643 views

Trying to boot a diskless server to Windows 2012 using iSCSI and Differencing VHDs

We are in the middle of a big VMware to Hyper-V migration at the moment. Part of this process is going to be changing some of our existing ESXi servers to Hyper-V. These ESXi servers don't have hard ...
1
vote
4answers
390 views

10GbE with FCoE with SAN and LAN traffic is a good solution?

I'm building a small datacenter from the ground, and I'm considering 10GbE. I'm looking for some advices about this decision. I've compared Infiniband, FC, 10GbE and LACP with GigE, and in the end ...
3
votes
0answers
423 views

Windows Server 2012 - Hyper-V - iSCSI SAN - All Hyper-V Guests stops responding and extensive disk read/write

We have a problem with one of our deployments of Windows Server 2012 Hyper-V with a 2 node cluster connected to a iSCSI SAN. Our Problem Our problem is that for some reason all of the VMs stops ...
1
vote
1answer
474 views

iSCSI Datastores not found after Power Failure

I have an ESXi 5 host running 3 virtual servers. 1 of these servers uses a datastore via Software iSCSI on a separate piece of hardware. When the two hardware servers (storage and host) experience ...
0
votes
1answer
62 views

iSCSI initiator - only want one of three available volumes

Initiator: CentOS 6.4 Target: EqualLogic PS6110 I have three volumes currently exported from this SAN. I want to connect to one of these (and only one) from the CentOS machine. What I've tried: ...
0
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2answers
250 views

windows 2012 failover cluster, system validation, and storage spaces

I have two host servers with Windows 2012 Hyper-V installed. I have also configured File and Storage Services with one Storage Pool, one Virtual Disk on each server. I used Star Wind SAN for Hyper-V ...
1
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2answers
3k views

Routing traffic to a specific NIC in Windows

I added a 10GB NIC to a SQL server which is connected over to a backend storage using ISCSI. I would like to force traffic going to a certain IP address/host to use the 10gb NIC, while all other ...
1
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1answer
249 views

Create a share on iscsi drive in Windows Server 2012

I am brand new to server administration but I don't belive im trying to do anything to exotic I have a windows server 2012 (standard) and a drobo 800i My goal is to setup company shares on the ...
-1
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1answer
76 views

Where is the location of shares stored in Windows Server? (Switching iSCSI disk to VMDK)

I have a virtualized Windows Server 2008 with iSCSI volume attached (inside the guest). This disk servers as the main file server data disk with lots of shares, permissions, etc. I would like to ...
2
votes
2answers
908 views

iSCSI: LUNs per target?

My question relates specifically to ZFS/COMSTAR but I assume is generally applicable to any iSCSI system: Should one prefer to create a target for every LUN that you want to expose? Or is it good ...
0
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1answer
228 views

Solaris iSCSI read speeds increase when we start writing

Here's one I haven't seen before. We have an IBM Storwize V3700 storage array, 24 TB, RAID 5 connected to a Solaris 10 file server via an iSCSI link over Gigabit Ethernet (no MPIO at present). We ...
2
votes
4answers
106 views

SAN newbie: Using a server like an ISCSI gateway for a purely FC SAN device

I am very new to SANs and have inherited an old EMC CX300 to play with. The CX300 is purely FC, but I'd like to experiment with ISCSI as well without having to purchase an expensive ISCSI gateway ...
0
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1answer
97 views

iSCSI LUN, more than one intitator

I am experimenting for the first time with iSCSI. I ´ve setup a Synology DS1513+, target and LUN configured, first initiator (WS 2008) configured, copied some folders on it, everything works fine. ...
0
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0answers
149 views

read only file system

we have a Linux box (RH5) accessing a LUN on a NETAPP FAS2040 via iSCSI, for some reason the system remounts the LUNS(file systems) in read only mode, mostly when deleting huge chunks of data, ...
1
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1answer
224 views

iSCSI Storage with Broadcom BCM5709 Offload in XenServer 6.2

I'm in a process of migration from ESXi to XenServer. But we can't add our iSCSI Storage via Hardware HBA in XenServer 6.2. I've tried to manually load bnx2i and cnic modules via modprobe but it has ...
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1answer
487 views

cannot create zfs pool on iscsi multipath drives

I have a disk on iSCSI SAN, which i have mounted on my server through multipath. when i run the command to create zfs pool using zpool create -f zfs-data /dev/sdc or zpool create -f zfs-data ...
1
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1answer
74 views

Esx Storage / Management Network Architecture

Hi I'm trying to find the most reliable and performant solution for a vmWare storage / management network. Little overwhelmed with the options and limitations hoping for some insight based on my ...
0
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0answers
151 views

Using puppet to deploy windows backup with Microsoft iSCSI

We currently have started using the following strategy for Windows backups, which I am looking to deploy via puppet: iSCSI Initiator is enabled on the client server. iSCSI Virtual Disk + VHD are ...
0
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1answer
46 views

ISCSI Connector and Domain Name Migration

I have a Dell MD3000i that is connected to both of my Hyper V hosts. We recently went through a full domain migration from one domain to another. The last AD server is one of the hyper v hosts ...
2
votes
3answers
15k views

How to remove inaccessible iSCSI LUN from vSphere ESXi 4.1/5 with Storage I/O Control enabled?

I am testing out a iSCSI SAN solution in my vSphere environment and have been adding/removing LUNs on the SAN host while some were left connected on ESXi hosts. I had enabled Storage I/O Control on ...
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0answers
94 views

Upstart task to wait for iscsi target to become available?

I've got a couple of virtualization servers running Ubuntu 12.04 and Virtualbox and just bought a Synology NAS which I plan to use as an iSCSI target to serve storage for the VMs. I realize that ...
0
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1answer
223 views

Windows Server 2012 MPIO 30sec Time Delay

I build up one iSCSI with MPIO in my lab, attached is draft diagram. My MPIO may not configure as well, due to even though I set Round Robin in my Windows Server 2012 iSCSI manager, I still noticed ...
2
votes
1answer
810 views

Server hangs at “Shutting down loopback interface” on reboot

I'm having some trouble understanding what's going on with connecting one of our Xen hypervisors to our iSCSI SAN. Ever since we mounted our iSCSI targets, we've experienced hanging on reboots. This ...
0
votes
1answer
121 views

Cannot see available disk space in LVM

I have iSCSI disks connected to my server. i want to resize their capacity. It has LVM on the disk. when i resize the disk in equallogic SAN, i gave it 700GB. and when it check its disk space by fdisk ...
0
votes
2answers
283 views

Sub-$1000 iSCSI NAS options [closed]

I'm in the market for a sub-$1000 NAS solution for a small development/QA network. Needs to be reliable and something we won't worry about overnight, but does not need to be bulletproof/5 nines/what ...
0
votes
1answer
133 views

Accessing iSCSI LUN from OS X and Debian simultaneously

My setup is the following: Synology Disk Station as iSCSI target OS X 10.8 as client Debian as client I don't like to know that I should use WebDAV or similar file sharing protocols. I'd like to ...
1
vote
1answer
923 views

Sharing storage between DFS nodes providing failover without failover manager

I'm currently consulting for a small engineering firm that has been using a single server for all their domain needs and their management has got sick of not being able to access networked shares from ...
0
votes
0answers
51 views

SANHQ iSCSI network access

Trying to setup and configure SANHQ on a virtual server. Network I have patched 1 vmnic from each ESXi host into the iSCSI switch and configured the switch ports to access the same vlan as the san. ...
2
votes
0answers
368 views

iscsi disk over 2 TB cant initialized

I have a windows server 2012 x64. I'm free to connect and initialize the disks smaller than 2 TB. I can connect more than 2 TB disk but I can't initialize it? Windows can not determine its size, the ...
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votes
2answers
69 views

high bandwidth usage iscsid, who's doing it?

We run a couple of onapp nodes that connect through iSCSI to a SAN. This is now using up all bandwidth and we want to know where it is coming from, we have been search for days now and would like to ...
4
votes
1answer
227 views

SAN Performance Slow

I have an iSCSI HP P2000 loaded with 12 x 300gb DP SAS drives. This is connected to 2 DL385 servers with 64gb RAM running XenServer. The SAN network is multipathed via 2 gigabit switches (4 x copper ...
2
votes
1answer
279 views

SAN: is it better to have separate LUNs for operating system and data of virtual machines? [closed]

We have an iSCSI SAN that will be used as backing store for virtual machines. We use Xen and will directly present the LUNs as block devices of VMs (so there is no file system with files on it for ...
1
vote
1answer
71 views

Mount a iscsi target volume natively

I have a LVM logic volumn exported though iscsi and formatted by the client to ext4. Now that machine serving the iscsi target went down and I'm wondering if I can just take the hard disk out to ...
1
vote
1answer
1k views

iSCSI Disconnects every 30 minutes

Every 30 minutes, almost by clockwork, a get the following error on my Windows 2008 R2 servers: Log Name: System Source: MSiSCSI Event ID: 113 Level: Warning Description: ...