iSCSI using uplink ports on switch

Posted by Gregory Thomson on Server Fault See other posts from Server Fault or by Gregory Thomson
Published on 2012-11-16T05:44:01Z Indexed on 2012/11/16 11:03 UTC
Read the original article Hit count: 272

Filed under:

san

|

iscsi

|

10gbethernet

Do the uplink ports on switches typically work okay as iSCSI ports? We're adding a 10gb iSCSI SAN, and want to get a combo switch (48x1gb & 4x10gb SFP+ uplink ports) and use the 10gb for the iSCSI SAN, while the 1gb are for a 1gb iSCSI SAN. We were told the uplinks don't provide buffering needed for iSCSI.

Is this specific to the switches used, and do some provide that needed buffering and some not on the uplink ports?

© Server Fault or respective owner

Related posts about san

Connection lost to iscsi san after problem with san

as seen on Server Fault - Search for 'Server Fault'
Hi there, We have a cluster running with 3 VSpere ESX4 server that all are connected to a lefthand san through iSCSI. This all worked well but a week ago there was a problem with the san. After fixing that problem the VMWARE server continued working but this weekend I saw that 1 server didn't have… >>> More
SAN performance issues storing SQL Server tempdb on a SAN that's being backed up

as seen on Server Fault - Search for 'Server Fault'
I'm afraid I don't know much about SAN's so please forgive my lack of detail or technical terms. As a developer I've just completed and put on an existing production system a new application but it would appear to have tipped the scales regarding the performance of the backups being taken from the… >>> More
cPanel web servers mounting home partition to a NAS or SAN

as seen on Server Fault - Search for 'Server Fault'
Hello, I currently have 2 cPanel web servers that are little 1RU dual cpu quad core xeons. They have a lot of resources for processing and handling web requests, and never exceed more than 10% cpu usage. They also have plenty of RAM. The problem is though that they both have RAID 1 160Gb SAS hard… >>> More
SAN with iSCSI-Target Performance Horrendous

as seen on Server Fault - Search for 'Server Fault'
We have a poor man's SAN setup in a 1U Ubuntu server running iSCSI-Target with two 300GB drives in RAID-0. We then are using it for block level storage for virtual machines. The hypervisor is connected to the SAN via gigabit on a dedicated VLAN and interfaces. We only have a single virtual machine… >>> More
2 Server FC SAN Configuration

as seen on Server Fault - Search for 'Server Fault'
I have 2 identical servers: -48GB Ram -8GigE NIC's -2FC NIC's -2x72GB RAID1 Hard Drives -Server 2008R2 Host I also Have a Fibre Channel SAN: -16x146GB RAID10 Hard Drives -2xDual-port FC Controllers (Controller A and B both have ports 1 and 2) -Server 1 has Fiber to Ports A1 and B1 -Server 2 has Fiber… >>> More

Related posts about iscsi

Removing an iSCSI Target - iSCSI initiator 2.0 on Windows Server 2003 R2

as seen on Server Fault - Search for 'Server Fault'
For the life of me I cannot figure out how to remove an iSCSI target (Dell Equallogic SAN) from a Windows Server 2003 box. The volume shows up in Windows as drive letter Y:\ Using the iSCSI initiator, I can remove the Target Portal, but cannot remove the Target itself. Can someone give me some… >>> More
AIX: iscsi volumes disappear after reboot

as seen on Server Fault - Search for 'Server Fault'
We have an IBM P505 AIX box, with two internal disks and a defined iSCSI volume. The iSCSI volume is defined in it's own volume group, and is connected to an IBM iSCSI DS3300 disk array via the secondary onboard ethernet port (ie, we're not using a dedicated HBA, we're using the second onboard ethernet… >>> More
How to connect SAN from CentOS through two iSCSI Targets

as seen on Server Fault - Search for 'Server Fault'
I had asked the similar question before. This time I want to use subnet for two iSCSI Targets, hence I start a new question. I have an old Promise VTrak M500i SAN Server. It comes with 2 iSCSI ports. I want to connect to two LUNs on the SAN server through two separate Targets from CentOS 5.7 64bits… >>> More
Can single ESXi host make use of two separete iSCSI box?

as seen on Server Fault - Search for 'Server Fault'
Hi! I have problem with using multiply iSCSI targets with single ESXi host (in my case they are two FreeNAS hosts, but I suspect that this problem will occur with any two iSCSI box of that same type/model). If I configure two FreeNAS hosts as iSCSI targets (say iSCSI A and iSCSI B), then I can use… >>> More
Problems with 2 ISCSI connections esxi 3.5

as seen on Server Fault - Search for 'Server Fault'
I am running a dell poweredge 1950 with 4 nic cards. 1 is bonded to SAN #1 on 192.168.90.xx. The second SAN is on a separate network - 192.168.7.xx The network adapter can view the ip range of the san and the NIC can be pinged from 192.168.7.xx range. vswitch1 and vswitch2 are configured identically… >>> More