iSCSI - SCSI over IP - mount disks across the network

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Linux (openSuSe) iSCSI Initiator: How to pass a CHAP user name and password?

I need to connect to iSCSI target with CHAP authorization. How to do this? I not found needed option in the iscsiadm. Do I need edit /etc/iscsid.conf or /etc/nodes/iqn.200-01..target/../default? With ...
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1answer
22 views

How to configure iscsi targets so they are on dedicated ports?

I have two hosts. One is the iSCSI initiator. The other is the iSCSI target. They are both running Ubuntu 16.04 LTS and both are using open-iscsi. Specifically, the target host (let's call it "...
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3answers
117 views

KVM-Host lost connection to Storage

I would really appreciate some advice on how to fix this. I have a Debian KVM-Host with 9 Debian VMS running on it. The virtual machines are running on my little Storage via iSCSI. Now, my switch ...
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1answer
122 views

What is better: iSCSI or NFS for mysql datadir mount? [closed]

There is database server with ip-address in external zone with mysql instances and nas-storage existing in internal zone. I need that database file is located in storage. I want write in my.cnf for ...
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2answers
74 views

Hyper-V on 2012R2 HyperV Edition or 2008R2 Standard Edition?

We are currently running VMWare ESXi, with 1 Windows 2008 R2 Standard instance, 1 Windows 7 instance and 2 Linux instances. So, recently I wanted to upgrade my server, because there were a lot of ...
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0answers
20 views

LUN doesn't mount after reboot

After changing the size of a LUN (grow) on a RHEL 6 System, the LUN/LV (which is part of a Volume Group) does not mount after a reboot anymore. I have to execute vgchange -a y And after that i can ...
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0answers
18 views

Appropriate clustered file system for SAN drive connected to two windows hosts [closed]

I am a SQL Server DBA and my questions is a sysadmin one...so please forgive me for being blunt in some terms or phrasing things weird. I am looking for a solution to connect a iSCSI SAN drive to two ...
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0answers
10 views

Received legacy SPC-2 RESERVE/RELEASE while active SPC-3 registrations exist, returning RESERVATION_CONFLICT

I have 2 iSCSI fileio backstores. I try to Determine whether shared disks can be used as tiebreaker disks . For that I run on the iSCSI initiator a tool from IBM to release the reservation: [root@...
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1answer
15 views

rsync to remote ssh or to local iscsi

I'm curious of anyone knows a link to or can elaborate upon this design question: I have a server that I would like to make a backup copy of data from. I have a second server that is iscsi-enabled. ...
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0answers
11 views

Fujtisu Eternus DX80 change iSCSI Discovery Reply Mode

I have a configuration mistake in my dx80 and the system is already in production. I have to set "iSCSI Discovery Reply Mode" at "Host Response" configuration to "All - Reply All Ports (Default)". Is ...
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0answers
48 views

How to enable space reclamation from KVM guest to ZFS zvol iSCSI target?

I have a ZFS volume "tank/kvm/webhosting", exposed through iSCSI (using tgt) to KVM guest. <disk type='block' device='disk'> <driver name='qemu' type='raw' cache='none' io='native' ...
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0answers
37 views

esxi vmware iscsi-datastore lost after power outage

I usually just try to find my own solution until it just works, this time not so much.. I have a ESXi cluster, with 2 hosts and 1x datastore cluster. Earlier today after a power outage, everything ...
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0answers
29 views

Same LUN trough FC and iSCI to different hosts

On my small vMware lab I'm presenting the same LUN to both ESXi hosts, one from FC and another from iSCSI. iSCSI finds the devices but doesn't mount the datastore. As I can see disks have different ...
4
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3answers
88 views

VMWARE Guest Storage VMDK vs RDM-V vs RMD-P

When is it best to use VMDK, RDM-V or RDM-P? I have always defaulted to using the standard VMFS5 Datastores with VMDK files for each server. However I typically use RDM-V when I need an excessive ...
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0answers
28 views

How to emulate or make multiple iSCSI software initiator IQNs on RHEL RedHat 7?

I have 2 Ethernet HBAs with 2 ports each, all 4 ports are connected to iSCSI targets and I can login using iscsiadm command. But the iSCSI initiator name (IQN) for all 4 ports is one, in /etc/iscsi/...
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26 views

iSCSI Disk Usage on Initiator Does Not Match Target's Usage

I have a pair of Ubuntu 14.04 installs running within VirtualBox. I installed the IET target server (iscsitarget package) and have it properly serving up my selected LVM volume; this volume is ...
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1answer
41 views

iSCSI Windows Cluster share target or target per node

I have a lab environment where I have a Synology NAS that provides iSCSI targets which are used by Windows 2012 R2 VM's running on virtual box. I want to setup a Windows Failover Cluster and in order ...
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1answer
28 views

Unable to disconnect iSCSI Target

I'm fairly new at this, please pardon my ignorance. I have a backup drive on a NAS that I need to disconnect from iSCSI in order to increase it's size. I've gone into Disk Management, made sure the ...
1
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1answer
269 views

open-iscsi initiator on linux does not see the passive side of an active/passive open-e target

I have a Linux server running SLES11 SP4 which uses open-iscsi and multipathing to connect to a LUN that is presented from an Open-E DSS v7 storage cluster with active/passive failover. The Linux ...
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0answers
16 views

How to stop iSCSI server?

Is it possible to stop listening on iSCSI server port 3260 without deleting the portal from the configuration? I tried to stop all services I know, but it's still running. [root@okvmh1 ~]# systemctl ...
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0answers
29 views

XenServer 6.5 Zeroed Performance Metrics for IOPS

In one of my XenServer 6.5 pools, I'm adding some graphs in XenCenter to measure my iSCSI storage IOPS and throughput performance and I'm getting no response. The graph is actually responsive, but ...
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52 views

iSCSI Virtual Disk Missing

I have one Supermicro server with Windows Server 2012 used as NAS with RAID1 which crashed and after reboot half or the disk has gone either failed or missing, I did manage to get all of them fixed ...
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51 views

ISCSI Targetcli backstores fileio attach an existing image file

I can't seem to find an answer to this simple question. How do I attach an existing raw image file as an iSCSI backstore target using targetcli? I am using CentoOS 7. In targetcli I can get into /...
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Can't access drobo Pro via iscsi on new subnet

We have a Drobo Pro on our subnet which works fine via iscsi, however I am in the process of moving the servers over to a new subnet. I can access the Drobo with DroboDashboard via USB on my Mac and ...
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1answer
53 views

Active/Active MultiPathIO to two HP d2700s?

Our XenServer 6.5 hosts connect over ethernet to shared SAS storage via a single Linux based HP DL360 G6 "bridge". This single StorageServer bridges ethernet to SAS and shares out via an iSCSI daemon....
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2answers
46 views

LENOVO PX12-450R RAID configuration + general advice

I have a Lenovo PX12-450R NAS device with eight 3TB 7.2rpm drives. The device has a Quad-Core 2.5GHz Xeon CPU + 8GB DDR3 RAM. I have 4 gigabit NICS bonded. I am looking to use it to be a target for my ...
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1answer
31 views

ISCSI, MPIO and Target-IPs

Today I played around with ISCSI, MPIO and performed some tests. Some went as expected, someothers delivered results I cannot explain. The Test-Environment was 2 virtual machines, named A and B. ...
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0answers
19 views

Sharing iSCSI from one NIC to another on same machine

I have a Windows 2008 system with 2 NICs. One NIC is connected directly to an NAS (NIC1), and the other NIC is connected to the general network (NIC2). I am trying to share a iSCSI connection from the ...
0
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1answer
67 views

Mounting 40 iSCSI HP 3PAR SAN volumes in single CentOS7 server

I need to mount 40 HP 3PAR SAN volumes iSCSI LUN/target in single CentOS7 server that run nginx, each volume size is 8 TB, and that 40 mount points need to appear as single share path. Does such ...
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2answers
54 views

Is a switch is an iSCSI “mode” required for iSCSI targets?

If I have a switch, nothing special set up, just regular traffic, no jumbo frames, no special iSCSI set up, can I still have iSCSI traffic, say from a Windows machine using the iSCSI initiator and a ...
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0answers
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EMC NS-480 Celerra - Way to verify which iSCSI initiators are currently connected to a LUN?

In the NS-480 or a given Celerra NAS, is there a way to verify which iSCSI initiators are actually CURRENTLY CONNECTED to a given LUN? I can see how to look at the LUN MASKs in Unisphere and see ...
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0answers
52 views

wbadmin discardes complete backup history after dynamically resizing virtual **source** volume

A customer SBS2011 (Windows Server 2008 R2) is incrementally backuped using wbadmin. The system ist hosted on a VMware ESX 5. We dynamically increased the size of one of the volumes which is backed up....
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0answers
46 views

Windows Server Backup - iSCSI and USB Drives

Been using S2012R2 built in backup for a while with great success now, using a single USB3 external drive for daily backups. (1.6TB data approx). We're now looking to add an offsite backup, where we ...
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0answers
33 views

LVM File Systems created with multipathed ISCSI storage LUNs are automatically going to Read-Only mode

I am using my RHEL 5 server with SAN LUNs to take the backup of my domain mails of all the users. For the redundancy, I configured multipathing for those LUNs. For scalability, I used those ...
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0answers
89 views

Synology DS1813+ RAID 5 with iSCSI IO wait perfomance issue

I'm have RAID 5 on Synology DS1813+ (DSM Version: DSM 5.0-4493 Update 4) with 8 ST4000DM000-1F2168 disk, usind as NAS and iSCSI/NFS targer for ESXi. In low read/write rate from disk have more io wait,...
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1answer
80 views

iSCSI opcode[89], error(-65539)

I have error iSCSI target (Synology DS1813+) used as NAS: Jan 19 12:03:55 SRV1 kernel: [23311947.266497] iSCSI: iSCSI: EPIO[/volume1/@iSCSITrg/iSCSI_3_Extent_LUN-LUN1_000], opcode[89], error(-...
0
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1answer
58 views

RHEL: iscsiadm is not able to login in any port except 3260

Discovery is successful: [root@ncdqd0110 iqn.11351.com.xxx:AAA]# iscsiadm -m discoverydb -t sendtargets -p 127.0.0.1:54541 --discover 127.0.0.1:54541,-1 iqn.2495.com.xxx:AAA Login is failing: [...
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19 views

Unable to see the iscsi luns given from a second target server to the same initiator on RHEL

I configured a target server on RHEL 6.7 and provided the LUNs for a machine running on RHEL 5.4. After few days, the storage on the target server is completed and I configured another target server ...
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0answers
116 views

Xenserver 6.5 (Open Source) VDI per ISCSI LUN (ZFS ZVOL)

In Xenserver 6.5 (open source edition) I want to create VMs with VDIs that are actually iSCSI LUNs shared by a CentOS 7 SAN which are in fact ZFS ZVOLS (the last part should not matter). My problem ...
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87 views

Unable to view LUNs exported on Linux via fibre switch brocade from IBM San Storage

I have problem mapping LUNs to my linux box from IBM San Storage Configuration: Host: Debian wheezy Host: Fibre controller QLogic 4Gb dual port DS4700 San Storage using Storage manager 10 brocade ...
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40 views

ISCSI intiator displaying the ISCSI target even after its removal on ISCSI target server

I am running a ISCSI target server on RHEL 6.7 and sharing the storage for the ISCSI initiator server which is running on RHEL 6.5. I configured the below code in the /etc/tgt/targets.conf file of ...
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2answers
103 views

Xenserver, iSCSI and Dell MD3600i

I have a functional xenserver 6.5 pool with two nodes. It is backed by an iscsi share on a Dell MD3600i SAN, and this works fine. It was set up before my time. We've added three more nodes to the ...
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27 views

Server 2012 iSCSI target remains after deletion

I've got server 2012 as an iSCSI target, and a server 2003 (not R2) as iSCSI initiator. The initiator sometimes hangs and says "reconnecting..." and I think it's because an old target shows up, but ...
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ietd - spamming logs ietd: unable to connect (Connection refused) 2

I have a fileserver (debian wheezy, 3.2.0-4-amd64 #1 SMP Debian 3.2.60-1+deb7u3 x86_64 GNU/Linux) set up with open-iscsi, o2cb, ocfs2. 3 connected clients and the fileserver itself are working great, ...
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1answer
152 views

Access iSCSI block device, setup as ZFS volume on CentOS7 - won't automount on boot, hangs on reboot

I am running CentOS7 on a virtual instance at Softlayer. There is a block storage device available to the instance via multipath/iscsi I have successfully had this block device mounted as XFS. I ...
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1answer
38 views

Can I Migrate An iSCSI Initiator Name To Another Server?

I am working on upgrading a virtual appliance in a datacenter and the upgrade process is a drop-in replacement of an update VM, but also a different disto (Debian -> CentOS). I am stuck waiting on an ...
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1answer
281 views

iSCSI design options for 10GbE VMware distributed switches? MPIO vs. LACP

I'm working on expanding the storage backend for several VMware vSphere 5.5 and 6.0 clusters at my datacenter. I've primarily used NFS datastores throughout my VMware experience (Solaris ZFS, Isilon, ...
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28 views

ISCSI slow connection after reboot

I have a problem with my ISCSI storage, and hop you can help me to solve this problem. The system was made following this tutorial: https://help.ubuntu.com/community/HighlyAvailableiSCSITarget So i ...
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2answers
1k views

iSCSI target stuck reconnecting after server reboots

I've been having some ongoing issues with my iSCSI connection not reconnecting itself after the server reboots, as shown below: OS is Windows Server 2008 R2. The iSCSI device is for my SQL Server ...
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42 views

Dell M620 Windows 2012R2 Boot from iSCSI to PS6000 Issue

All QLogic drivers are current. The iSCSI initiator connects to the target and volume (of course there is no OS yet) when testing the boot. I've read the Dell Configuring Windows Server 2012 for ...