All Questions
Tagged with vmware-esxi iscsi
94
questions
1
vote
2
answers
245
views
RHEL 8 extend iSCSI LUN without reboot
In short: I´m building computer systems with mounted iSCSI storage. Is it possible to extend the iSCSI storage in live operating without rebooting the systems?
Details:
One LUN is planned with 5 TB ...
- 13
1
vote
1
answer
1k
views
VMware vSphere 7.0 U3 + TrueNAS Core 13.0: can't create VMFS6 datastore from TrueNAS iSCSI disk. Why?
I have a bare metal server running vSphere/ESXi 7.0 U3d, and a bare metal NAS running TrueNAS Core 13.0. The NAS has a single pool shared via iSCSI; the pool is running all defaults (lz4 compression+...
- 61
1
vote
1
answer
432
views
LinuxIO (LIO) target @ Debian 10 and VMware 6.7 Initiator: Detected WRITE_PROTECTED LUN Access for 0x00000000
we are running
QNAP NAS
Debian 10
Host VMware 6.7U3 Hypervisor
a) Exporting an iSCSI-LUN-target with the QNAP, what ist using LIO therfor, and accessing it from VMware (read/write) works fine.
b) ...
- 171
3
votes
2
answers
52
views
How to properly setup VMs for testing (personal test) [closed]
So both of my testing VMs are on the same laptop and both of them are running Windows Server 2019 and both of them are on the same SSD.
Basically, I need to test performance when the SQL database is ...
- 151
0
votes
1
answer
200
views
vCenter moving VM from ISCSI target to different ISCSI target
In my server lab, I am running a vCenter cluster with 2 ISCSI targets. Both of these are directly connected to switch using SFP+ port.
I assume, when I do such a process as cloning a VM from one ...
- 131
0
votes
1
answer
1k
views
Unable to mount iSCSI shared Datastore on VMware ESXi
I had an iSCSI Datastore mounted and now am unable to remount it.
There are 2 shares one of which is new and I want to copy the data from the old to the new.
I have created a new datastore with the ...
- 395
3
votes
1
answer
10k
views
mount vmfs partition in esxi
I lost connection to an iSCSI disk, and after reconnecting the datastore has not mounted. I can see the VMFS partition, but I'm not sure how to mount it manually. The UI options don't seem to offer an ...
- 608
4
votes
2
answers
4k
views
Synology and vmware with 4 way MPIO slow iSCSI speeds
I am trying to achieve high iSCSI speeds between my ESX box, and the synology NAS. I am hoping to achieve a top speed of 300-400 Mb/s. But so far all i've reached is 150 - 170 MB/s.
The main test ...
- 63
0
votes
1
answer
2k
views
Multipathing on VMware ESXi is missing
I'm trying to configure a storage multipathing on VMware web client.
I'm running the version 6.5.0, build 6765664.
The problem is that on my storage section I can't find the option about multipathing.
...
- 139
1
vote
0
answers
822
views
How to make backup of VMWare ESXi host from Centos 7 using the ISCSI target?
I have the VMware ESXi 6.7 free version as the iSCSI initiator and the iSCSI target with CentOS 7 64bit. All of VMs installed in the iSCSI datastore. Is there any way to sync or copy the file from the ...
- 171
2
votes
1
answer
900
views
iSCSI vCenter/Veeam issue
I have a little pickle here that I cannot seem to find a solution for;
As of a few days ago, my backups (VeeamB&R-9.5) started failing with the following error:
Veeam output;
Error: Cannot ...
- 31
3
votes
1
answer
2k
views
Standard vSwitch static LAG with iSCSI hardware initiators - impossible configuration?
In one site, we have vSphere hosts with 2 10G NICs.
Both NICs are in one vSwitch
failover policy IP Hash for static LAG (this is to balance/failover VM traffic)
Both NICs (HPE 534FLR-SFP+/QLogic ...
- 1,533
3
votes
1
answer
16k
views
How to share a storage between multiple VMs using VMWare ESXi and VSphere?
I have two application servers running in a active/active cluster within a VMWare ESXi (5.5, upgrade to 6.5 in near future) virtual host running VSphere. The application needs a shared, high ...
- 2,076
1
vote
1
answer
128
views
starting Virtual Machine on ESXi Host 6.5 standalone host fails
I am having an issue with my iscsi-datastore. My Virtual Machines are making a backup on second HD connected to each Virtual machine.
This HDs are located on iscsi-datastore. In windows, Veeam does ...
- 21
1
vote
1
answer
819
views
Is is possible to use AWS Storage Gateway as an iSCSI target for ESXi?
Summary
Is is possible to use AWS Storage Gateway as an iSCSI target for ESXi?
-- or --
AWS Storage Gateway volumes not showing up in ESXi iSCSI device list - what's up with that?
TLDR: Based on ...
- 303
3
votes
2
answers
1k
views
ESXi 6.5 shared datastore on ISCSI LUN
Problem, in short:
I'm having trouble sharing a datastore between two virtual esxi6.5 hosts on a common ISCSI Lun exposed to them. Only one of them is able to create while other one loses its ...
- 131
4
votes
2
answers
1k
views
Slower performance using Jumbo Frames on Dell PowerVault MD3200i
We have a Dell PowerVault MD3200i connected to a server via iSCSI using 2 Dell switches (PowerConnect 6224) at 1GB. The server has VMware ESXi 6.5 installed and it's connected to the PowerVault using ...
- 299
1
vote
0
answers
387
views
Can ESXi pause VMs on a datastore in APD state?
I know that using VMCP on VMware ESXi, it's possible to make the ESXi host shut down or restart a virtual machine when a datastore that the VM resides on goes into All Paths Down (APD) state.
I'm ...
- 9,198
6
votes
1
answer
117
views
Using a VMWare Server to host ISCSI drive
Hi I'm not really a network guy (I'm a dev). I'm playing around setting up a used Dell R710 as an ESXI server in the office for testing and development. We use VirtualBox for our local development ...
- 189
2
votes
1
answer
2k
views
Fiber Channel (8 Gb) or iSCSI 10 Gb [closed]
I'd like to know your opinion about this based on your experience working with iSCI and Fiber Channel, I think i'm gonna keep with iSCSI 10Gb, but want to know what you guys think about this:
I have ...
- 299
1
vote
0
answers
470
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 ...
- 11
1
vote
0
answers
91
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 ...
- 153
4
votes
3
answers
1k
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 ...
- 7,936
0
votes
0
answers
732
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,...
- 111
0
votes
1
answer
291
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(-65539)...
- 111
9
votes
1
answer
2k
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, ...
- 198k
3
votes
0
answers
584
views
Maximum transfer rate iSCSI bonding vs multipath
I want to get the maximum tranfer rate with iSCSI from my virtual machine (Linux) to my Linux Storage Host.
I don't know iSCSi well so I'm not sure which way is the best for performance.
A: Just ...
- 131
1
vote
0
answers
688
views
VMWare ESXi and iSCSI via FreeNAS
I've recently been setting up a sandbox ESXi environment with a VM running FreeNAS providing a volume which is connected as a datastore on the host via iSCSI.
I've created a VM on this datastore and ...
- 11
1
vote
1
answer
739
views
Persistent ESXi iSCSI datastore from guest VM based target? [closed]
I'm in the process of building a home lab environment for Cisco and VMware that will also double as a NAS. The system runs ESXi v6.0 bare metal. Part of my design is that I have a Lenovo TS440 with ...
- 111
15
votes
1
answer
24k
views
Incredibly slow snapshot removal
I have an ESXi box with HP LeftHand storage exposed via iSCSI.
I have a virtual machine with a 1TB disk, of which 800GB is consumed. The disk is thick provisioned on the LeftHand storage.
A snapshot ...
- 69k
2
votes
2
answers
814
views
iSCSI steps between 1Gb/s and 10Gb/s [closed]
So, I am in the process of building out a iSCSI system based off freeNAS. This is being connected to a few (around 20ish) ESXi 5.5 boxes. These ESXi boxes only have the boot drive and a few Gb of ...
- 21
4
votes
3
answers
3k
views
vSphere Datastore for specific datatypes: NFS or iSCSI
I am looking into improving performance in my vSphere environment.
We are using a NetApp appliance with all VMs stored in Datastores that are mounted via NFS.
It was suggested to me that, for some ...
4
votes
1
answer
3k
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 ...
- 7,725
2
votes
1
answer
596
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 ...
user259430
0
votes
2
answers
2k
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 ...
- 405
1
vote
2
answers
764
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, ...
- 1,490
-1
votes
1
answer
589
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 ...
- 405
1
vote
2
answers
170
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 ...
- 202
15
votes
3
answers
7k
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 ...
- 210
3
votes
2
answers
9k
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 ...
- 659
1
vote
2
answers
45k
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 ...
- 127
3
votes
1
answer
1k
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 /...
- 151
1
vote
0
answers
789
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 ...
- 77
1
vote
0
answers
323
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 ...
- 11
4
votes
1
answer
696
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 ...
- 14k
1
vote
2
answers
4k
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 ...
- 1,102
2
votes
1
answer
2k
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 ...
- 31
1
vote
1
answer
163
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 ...
- 443
0
votes
1
answer
3k
views
Dell Compellent SAN with ESXi 5.1 iSCSI
I have a Compellent SAN that I am trying to point to my ESXi server through iSCSI.
In the Compellent UI: i've created a volume. It, of course, says the volume is offline until you map it to a server. ...
- 421
5
votes
2
answers
542
views
Networking with VMware, physical adapters and iSCSI
New VMware user here, setting up my first environment. I have an ESXi host that has four physical NiCs (NiC0, NiC1, NiC2, NiC3).
I have installed ESXi, the VCVA appliance, and several VMs ...
- 421