iSCSI - SCSI over IP - mount disks across the network

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4
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1answer
31 views

Installing to an iSCSI target and booting it without PXE

I'm running Windows Server 2012 R2, Standard Edition and have set up an iSCSI target, which I'm wanting a client to be able to: Connect to in such a way that I can install Windows 7. Allow client to ...
1
vote
2answers
71 views

Ideal iSCSI setup [closed]

We are experiencing slowness and I am fairly new to using SANs so I would like some help with this. First off, I don't think this will fully solve our issue, but I would like to focus on our iSCSI ...
13
votes
1answer
219 views

How to crack the 1 Gbit iSCSI limit between ESXi and VNXe

I'm having big troubles with my iSCSI network and can't seem to get it working as fast as it could. So I've tried pretty much everything to gain full performance from my SAN, having involved ...
0
votes
0answers
17 views

Error in XenServer iSCSI SR Creation (SR is not available)

I have a XenServer 6.2 with a Debian 7.5 VM which i use as iSCSI target. I have my target reachable by portal but i would make a Storage Repository available in my XenServer pool. Unfortunately, ...
2
votes
0answers
57 views

Booting a diskless Debian system using bonding, bridging, and iSCSI

I'm trying to build my personal holy grail: booting my Debian Wheezy KVM server diskless from a iSCSI target and the only configuration needed on the diskless server is the iSCSI parameters in the NIC ...
3
votes
2answers
98 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
131 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 ...
0
votes
1answer
42 views

Windows 8 on iSCSI with LIO target: thin provisioning

I have installed Windows 8.1 on an iSCSI target. This target is provided by Linux LIO and is backed by a sparse file. One of the reasons I created such an installation was thin provisioning. In other ...
3
votes
1answer
84 views

Are FC and SAS DAS devices standard enough?

Before I ask my questions, here is some background info that may or may not be useful: For the first time I find myself needing a DAS solution. My priority is data through-put in a single direction. ...
1
vote
1answer
48 views

Install xenserver on iscsi target

Is is know that Xen Server is based on CentOS, and it is fact that CentOS can be installed on an ISCSI target flawlessly, but I wanted to install Xen server on an ISCSI target I couldn't find a way. ...
3
votes
1answer
34 views

Arch: sharing a raw SCSI device via iSCSI?

I am working with some older SCSI devices on my Arch Linux installation. The information on the disks is actually needed on other systems. While I certainly could mount the disk on Linux and share it ...
1
vote
0answers
59 views

Diskless XenServer 6.2

I'm a bit suspicious since I cannot find relevant recent information on this. I am wanting to boot a diskless XenServer version 6.2 (the server... not the installer). I have an Intel Pro 1000 ET ...
-2
votes
1answer
113 views

remount a iSCSI datastore in ESXI host after network faillure

I run ESXI 5.1 and all my virtual machines are in a NAS mapped by iSCI datastore. My router broke and obviously all the vm's where cut from their disks. What I understand is that when such event ...
0
votes
0answers
45 views

NTFS corrupts by using Windows 2008 R2 share with Debian iSCSI Target

I'm currently using a Debian Wheezy server with a iSCSI block target "lun0". This target is mounted on my Windows 2008 R2 machine and formated using NTFS. The device is mounted as "D:\DATA" and shared ...
0
votes
1answer
13 views

ISCSI device and partitions used in ISCSI client

The command list all devices including ISCSI. cat /proc/partitions Is it possible to know which device is currently used by a given target? Thanks
0
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0answers
125 views

Vmware ESXi 5.5 can't connect to iSCSI target with blockio enabled

I'm currently trying to add a new iSCSI target that is set to run blockio instead of fileio. The iSCSI target i located on a Ubuntu server 13.10 and i already connected one my ESXi host to on target ...
3
votes
0answers
120 views

RHEL 6 iSCSI LUNs

I have a RHEL system set up as an iSCSI target with 2 luns shared out via one target via the following configuration in /etc/tgt/targets.conf (which I built following the commented out examples in ...
-6
votes
1answer
87 views

Is nfs good to share disk images over the internet? [closed]

I have an image server, this server contains disk images to be used by virtual machines. The server has to allow the runtime creation of new images, so iscsi is not good as it requires to restart the ...
2
votes
1answer
112 views

iSCSI MPIO disconnections

We have a test cluster setup with MPIO and all seems to be working well. The setup is using Windows Server 2012 r2 with a qnap as the backend storage. Routes are as follows; 172.16.10.10 (qnap port ...
0
votes
1answer
41 views

Windows 2012 server wrong iscsi disk size

I have Windows Server 2012 and iSCSI storage. On the storage, I created a RAID1 array out of two 2TB disks and connected it over iSCSI to the server. But the server sees the connected device as ...
1
vote
0answers
73 views

Linux/Open iSCSI: How to make iSNS discovery working?

I've read dozens tutorials and howtos but none of them helps me with the following problem. I have three machines: NAS server with iSCSI target on it which is registered in iSNS server. Solaris ...
2
votes
3answers
536 views

How to use iSCSI MPIO to increase bandwidth with XenServer?

I've a FreeNAS Server with four network interfaces. The iSCSI traffic goes through two of those interfaces, and each interface has one IP address in a different subnet. As example: igb0: ...
0
votes
1answer
43 views

Live migration: is it possible to store image disks on a single iscsi target?

From redhat documentation: A guest virtual machine installed on shared storage using one of the following protocols: Fibre Channel-based LUNs iSCSI FCoE NFS SCSI RDMA protocols (SCSI RCP): the ...
3
votes
1answer
203 views

Which iscsi target on linux for serving vSphere? [closed]

All such questions are a bit dated; I'm hoping things have changed in the past year. What do you guys use to serve a DRS cluster with vSphere 5.1/5.5? SCSI-3 persistent reservation support would be ...
2
votes
0answers
47 views

How to enable disk cache again after enabling iSCSI in Windows Server 2012?

I create an iSCSI Virtual Disk and a corresponding target. This enables the cache bypass flag on the volume. After I remove the iSCSI disk, the flag doesn't get reset. Anyone can help me to reset ...
1
vote
2answers
73 views

vCenter handles only the boot volume?

We have an iSCSI SAN unit connected to a cluster of ESX servers. The servers are all managed by an instance of vCenter. The vCenter instance manages a dozen Windows Server VMs. Most of the VMs have ...
1
vote
1answer
94 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
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0answers
18 views

iscsiadm - how to disconnect from one of several connections to same target

I have a RHEL 5.x server with multiple connections to the same SAN (different targets). I'm consolidating some of the storage and want to disconnect one of the connections. I have unmounted the ...
0
votes
0answers
110 views

DPM exceeds threshold of 90%

We currently have a setup with 3 devices : Dell MD3200i san, disk group created 6TB. Hyper-V Guest with DPM installed, iSCSI disk attached as a passthrough disk. Physical Hyper-V host, has the iSCSI ...
0
votes
0answers
60 views

iSCSI: Multiple initiators, single target, different LUNs

I have an iSCSI target with several LUNs on it. Right now they are configured as datastores in vSphere; what I'd like to do is delete one of these datastores (thus freeing up an LUN) then build a VM ...
3
votes
1answer
163 views

iSCSI devices added to storage server during DPM 2012 SPI backups

We have a Windows Server 2012 Failover cluster running a number of virtual machines. Storage for the cluster is provided by a Windows Storage Server 2012 instance and mapped to the nodes via iSCSI. In ...
1
vote
0answers
46 views

Adding external datastore to esxi, expanding datastore

I have an esxi 5.1 on a 1U server, accessed using vSphere. There are two 160G HDD's inside on RAID1. I'm looking to expand the number of VM's and the required storage is going to exceed this paltry ...
0
votes
0answers
78 views

Can't connect to iSCSI target on Amazon EC2 Windows Server 2008R2

I have Windows Server 2008 R2 running on Amazon EC2 with attached elastic IP. All ports in a security group are open but only to my IP-address. I have succesfully set up Microsoft iSCSI Target 3.3 ...
1
vote
0answers
101 views

Vmware Nas slow transfer rates/IOPS

I have built a test environment with a Synology RS812+ and an old HP140 server which has a gigabit nic installed. I have dedicated one nic to the network to DHCP and the direct to NAS from the server ...
2
votes
1answer
132 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 ...
0
votes
0answers
124 views

Cluster Shared Volumes offlining under excessive use

I am trying to understand (and ideally fix) a particularly annoying phenomenon I've noticed with Failover Clustering and Cluster Shared Volumes in conjunction with Hyper-V. It appears that under high ...
0
votes
1answer
302 views

Synology iSCSI Target - Install Ubuntu Server using PXE

Massive iSCSI/PXE noob here. I have a iSCSI target on my Synology NAS that I have attached in OSX using VirtualBox. I have the Ubuntu Server install ISO mounted on the Synology at ...
6
votes
1answer
91 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 ...
0
votes
1answer
65 views

Why Bitlocker in Windows Server 2008/2008 R2 doesn't support iSCSI drives?

As far as I know Bitlocker in Windows Server 2008/2008 R2 doesn't support iSCSI drives (but version included in Server 2012/Windows 8 does). Why it is so?
0
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0answers
33 views

iscsadm successful login but no block device is generated

i know, there is a similar article but the soluion there did not help. I'm using SLES 11 SP 2 with Kernel 3.0.13-0.27-default and i want to mount an iscsi Device from a Thecus NAS. I've using ...
4
votes
1answer
179 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 ...
2
votes
0answers
305 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
votes
0answers
175 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
votes
1answer
212 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
163 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
205 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
134 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 ...
-2
votes
4answers
217 views

Benefits of iSCSI over FTP or SMB

I was wondering if there are any major advantages of using the iSCSI protocol to access a NAS over a connection via FTP or SMB (besides access speeds, which would be higher with the use of the iSCSI ...
2
votes
1answer
79 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 ...