Questions tagged [fibre-channel]

Fibre-channel is a communications protocol widely used in storage networks. It's most widely deployed in enterprise SAN environments, where large amounts of storage need to be shared amongst a number of different hosts, potentially over longer distances. The protocol is primarily used over fibre optic media (hence the name), but can also be used with copper interconnects.

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Does Windows have native Fibre Channel initiator?

I'm new to Fibre Channel and I'm aware that Windows has a native iSCSI initiator. However, I couldn't find something similar for Fibre Channel. Is it all done with third-party software from the ...
3 votes
1 answer
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Are SFP+ "Ethernet" direct attach cables compatible with Fibre Channel?

I'm trying to find some short 8G SFP+ Fibre Channel direct attach cables but they're rare and expensive, can a passive 10G SFP+ direct attach cable marketed for Ethernet be used between two 8G SFP+ ...
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1 answer
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HPE Proliant Gen8 FlexibleLOM options for homelab network [closed]

In my homelab rack I've got a pair of DL360p's and a pair of DL380's (one P, one E). Network hardware wise I've got a 24 port Brocade 300 and a 48 port POE+ Avaya switch with a single SFP+ port. (...
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HS22 10 GB network

I want to switch from 1 GB ethernet connection to 10 GB on HS22 blades which are installed in a H chassis. On the storage side, I have installed 8GB FC cards which are connected via the MSIM to a 8 GB ...
0 votes
1 answer
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Centos 6.7 Emulex LPE12002 on Dell can't see any targets/LUNS on HP EVA4400 SAN

As the title indicates -- I have a new Dell R730xd running Centos 6.7 with all updates loaded, etc. I also installed the Emulex utilities, etc. The issue is that nothing I try (reboot / rescan-scsi-...
0 votes
1 answer
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can you cancel the rescan-scsi-bus.sh --forcerescan action

i was wondering if it was possible to cancel the rescan-scsi-bus.sh --forcerescan action after running it ? as far as i can see all it does is adds echo 1 > /sys/class/scsi_device/${host}:${channel}...
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How is FC HBA card compatibility on Ubuntu? [Solved]

I have a server running on Ubuntu 16.04, and need to connect this server to a SAN storage via FC. I wonder which kind of HBA FC card does Ubuntu support? For example, this card is suggested by a ...
1 vote
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Linux: sd* exists in /sys/block but not found under /dev

I am operating an OpenStack cloud which is using Fibre channel to connect to backend storage. The issue I am facing is that sometimes disk, for example sdx, got a folder under /sys/block/sdx, but ...
2 votes
3 answers
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Tape drive Connectivity - Fiber channel Vs SAS

We want to change our tape backup system and acquire a LTO8 tape drive. Something that I cannot find the answer easily is what are the pro&con of the connectivty by Fiber channel or SAS. For the ...
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How to create Fibre Channel Data storage on HPE?

We bought HPE ML30 with OS Windows Server 2019 that runs on SSD and 4 SATA of 8TB each (which are not in RAID system, so each disc works on each on). We also added Fibre Channel adapter on server and ...
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1 answer
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JBOD hard drives report incorrect size

I am trying to setup a netapp ds14 to use with 6 and 8tb SATA drives I got FC to SATA interposer boards and now all the drives are correctly identified and visible, however the capacity that I see is ...
1 vote
1 answer
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How to make Linux discover new LUNs from Pure Storage FlashArray//X70 R3?

When a new LUNs are presented to Fibre Channel SAN from a Pure Storage FlashArray//X70 R3, Linux (SLES) does not find those (as opposed to other FC storage systems like the HP EVA or 3PAR StorServ). ...
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1 answer
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Qlogic QLE8152 connect to a DS14 disk shelf

I am trying to configure a NETAPP DS14 disk shelf to expose the drives to a windows or a linux machine, I don't have a controller but I got a FC to ethernet adapter (Qlogic 8152) however the loop does ...
22 votes
1 answer
4k views

Checking fiber cables for light without risking my eyes

I do storage, so I do a lot of fiber. I am also unlucky enough to have a patch panel with single strands, so when someone else does patching for me, it's usually a mystery which of the two strands I'm ...
1 vote
1 answer
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Mount the Vplex Virtual Volume ( LUN ) Xen Server

Hello ServerFault members, Please help me with this issue. I am in very strange situation with my Xenserver environment. I am trying to mount the Dell EmC ( Vplex LUN ) to the Xen server HA and when ...
1 vote
0 answers
75 views

Fibre channel multipath

I have a server with two FC adapters connected to Sun 6140 (IBM DS4700) array. One adapter (1) is connected to Cisco MDS switch and that switch connected to both array controllers. Second adapter (2) ...
1 vote
2 answers
219 views

3par OS location

As a complete 3par Newbie I have a simple question about the OS of the Storage-System. Is the OS on a 3par stored on it's controllers or on Disks like in some EMC-Models. When I have an empty 3par-...
0 votes
2 answers
3k views

Best free software solution for homemade iSCSI SAN [closed]

I currently have a NAS running ZFS on Ubuntu but have recently changed my main windows software to pool local drives using Stablebit DrivePool. I cannot include networked drives in DrivePool unless ...
1 vote
1 answer
2k views

How do I resolve an "Invalid Transaction" error saving a zone config in Brocade Web Tools?

When trying to save zoning changes in the Zone Administration tool in Brocade Web Tools, I get the status "Failed to commit changes to fabric" and the messages window shows: --- start of commit (...
1 vote
1 answer
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Diagnosing SAN connectivity issues (RHEL5)

We are currently utilizing GFS2 to share a SAN LUN between 3 servers. However due to a feature problem with vendor software we are using, we currently have the volume unmounted on two of the boxes, ...
8 votes
1 answer
578 views

Can I dynamically expose an entire SCSI host over Fibre Channel, preferably in Linux

Is it possible to expose an entire SCSI host dynamically (an LSI HBA or RAID card) over Fibre Channel, if so how? Preferably on Linux (perhaps targetcli) and with disk hotplugging support. (i.e. ...
1 vote
0 answers
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How do I set up IP over FC on OpenSolaris / Illumos?

This article implies that it's easy, but gives no details. I have a double QLogic card in my OmniOS server, connected via two fibre-optic cables to SFP adaptors in my Procurve switch. What I would ...
10 votes
1 answer
982 views

Correct placement of devices on a Fibre Channel fabric

We're getting a pair of new 8Gb switches for our fibre channel fabric. This is a Good Thing since we're running out of ports in our primary datacenter, and it'll allow us to have at least one 8Gb ISL ...
0 votes
1 answer
620 views

Configuring MPIO on Windows to remove duplicate disks

We have shared some storage from a EMC Unity SAN to Windows Server 2012 R2 to use with Veeam. In Disk Management, there are multiple disks listed with the same size. From previous systems, this is ...
0 votes
1 answer
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Configure single LTO tape drive over Fiber Channel HBA

How do you set up a single tape storage drive over an FC HBA? As far as I can tell, these things are not "plug and play". The tape drive I bought is an lto-5 FC taken from a tape library. I have ...
3 votes
2 answers
5k views

How do you remove attached FC LUNS from CentOS 6?

We have a Qlogic QLE2560 HBA running on a Centos 6 server. I am needing to remove the attached LUNS remotely. I do not have any software from qlogic installed on the device. Their are 2 LUNS ...
0 votes
1 answer
4k views

Centos 7 - install and mount fc multipath disks

I tried to install multipathing on a Centos 7.5 host following some links like https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/dm_multipath/mpio_components https://www....
1 vote
2 answers
12k views

How to share Fibre Channel between servers on Windows 2012 STD

I'm new to Fibre Channel so please take that into consideration. We have 3 servers. 2 servers are running Hyper-V and 3rd server was bought to act as a file/backup server for those 2 servers. All ...
0 votes
1 answer
2k views

Fibre Channel Adapter as a NIC?

Is it possible to use a Fibre Channel PCIe adapter as an Ethernet network interface? I have QLogic Fibre Channel controller and a 3Com Gigabit Ethernet switch. I use Debian on a DL160 G5.
-2 votes
1 answer
671 views

Fibre Channel Ports and Tape Library

I am looking for advice rather then fix my issue. What should fibre channel port settings be? Currently F_ports, I have a qlogic 5800 sanbox switch connected to quantum scalar i40 lto7 library over ...
2 votes
0 answers
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fsck.ext4 complaining that the device is in use. Can't find what exactly is using it

Our setup is a 3-node RHEL 7.3 bare-metal Kubernetes cluster running on Docker. We have a multipath FC SAN block device discovered on all three nodes. This device is used as a Kubernetes Persistent ...
1 vote
1 answer
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How to find if FC-Switch using port-zoning or not Brocade FC 300

I have to replace a HBA on RedHat5.3 due to card failure. A tech guy asked me that "Check your FC-Switch Zoning Type of Port Zoning or not? , because if host accessed by WWNN, you'll need to update ...
1 vote
1 answer
568 views

Moving a QLogic fiberchannel card from one ESXi host to another

We are trying to upgrade an DL360 G6 ESXi host with a DL360p G8. The G6 has a Qlogic ISP2532 FC card inside and everything works fine. Since I don't have a spare FC card, I need to use the same card ...
-6 votes
1 answer
2k views

What is a Fibre Channel disk? [closed]

Our NetAPP SAN uses something called "Fibre Channel" disks. What are Fibre Channel disks, and does this mean that I can't replace them with a NetApp SATA or SAS disk?
3 votes
0 answers
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How to setup nvmetcli for FC loopback mode?

I have a NVMe SSD, KC1000, from Kingston and a HBA, QLE2672 2-port 16Gb Fibre Channel Adapter, from QLogic and are installed on Linux kernel 4.16.6. Then I would like to set up a scenario which has a ...
2 votes
0 answers
243 views

Blade Server Networking Connectivity Solution

We are looking at purchasing 4 of the Dell M1000e Blade Chassis', along with 16x Half Height Servers in each. For our LAN Connection, we are looking at 2x MXL 10/40 GbE IO's per Chassis. From my ...
0 votes
1 answer
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split lc connection to fit two SMF transcievers?

I got a cross connect in a data center patched into my patch panel, I'm using SC to LC cable (SC from patch panel to LC into transceiver) to connect it to my switch (Arista 7150s). I just bought ...
1 vote
1 answer
149 views

How to reattach Fibre channel drive when server reboots

I have two servers connected via point-to-point Fibre Channel (QLogic cards). The file server is running FreeBSD and has the iSCSI Target The other is running Debian and is the Initiator. The target ...
0 votes
1 answer
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Cisco UCS compatibility with FC-AL storage array

We have a Xiotech RS-1602-FC-SBD storrage array that I am testing to see if it is of any use. We have a Cisco UCS Chassis with blade servers and a Fabric Interconnect 6120XP. The storage array ...
2 votes
1 answer
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No LUNs visible on ESXi 5.5 using Brocade 825 connected to EMC VNX 5300

We've just bought a new Dell PowerEdge R620 to replace the oldest of our 3 hosts in our vSphere cluster. The existing hosts are connected to our EMC VNX 5300 SAN using gigabit ethernet which is a ...
-1 votes
1 answer
456 views

HP PCIe 8GB FC Adapter not visible on Windows Server 2012R2 [closed]

Anyone who can assist me. I have a HP Proliant GL360, On Boot, the HP PCIe 8GB FC Adapter drivers are visible. Once logged on the server, when I go to Network Connections, I can't see the adapters. ...
-1 votes
1 answer
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How to differentiate GE, Optic and FC adapter/SFP?

I'm going through old switches laying around and find myself troubled by all the different connection types the PCI adapters and their SFP have. I found a 10GE (gigabit ethernet?) SFP that says it's ...
4 votes
2 answers
6k views

Centos 7 server can't see Disk Array disks

Context I have a server freshly provisionned with CentOS 7, connected to a Disk Array with a Fibre Channel connection. I want to mount the Disk Array's disks on my server's file system, and then ...
1 vote
1 answer
249 views

Fiber channel HBA, backwards compatibility

I'm pretty new to using FC HBA's, but planning on expanding my server with a storrage array. I found a cheap older (but good enough for my use case) LSI Engenio 1932. It has dual 4Gbs FC connection. ...
1 vote
0 answers
720 views

When multiple VMs share a storage device on the same host, where does the data actually travel?

I am trying to figure out the optimal way to share storage with multiple VMs on the same box. I am aware of a range of options: NFS, iSCSI, fibrechannel, bridged, etc, but I am unclear how they fit ...
1 vote
3 answers
4k views

Can a NetApp disk array be used as a JBOD?

I have a bunch of (old) NetApp DS14MK2 disks arrays with Fibre Channel connections. I wouldn't use them to anything critical, but instead of throwing them out, could I use each of them as a separate ...
1 vote
1 answer
507 views

FC persistentvolume: What is the LUN number?

I'm trying to understand how to use fibre channel with OpenShift/Kubernetes persistent volumes. At https://docs.openshift.com/enterprise/3.1/install_config/persistent_storage/...
3 votes
1 answer
10k views

Fiber Channel Loop vs Point to Point

So, I'm playing with a couple of QLogic QLA2340s connected directly together. I've got options here to either have them act as a loop, or in point to point mode. What's the difference if I'm only ...
5 votes
2 answers
3k views

Microsoft Hypervisor: Can we map LUNs directly to VM like VMWare RDM using HyperV's Virtual Fibre Channel Feature?

If we have a vSAN created on Microsoft Hypervisor and Virtual FC Ports have been assigned to VMs, can we directly map a LUN to the VMs bypassing the Hypervisor? i.e. The Hypervisor's disk management ...
3 votes
2 answers
457 views

Hyper-V Point to Point using FC HBA

Is it possible to connect Point to Point two Hyper-V servers using FC HBA to replicate data without connection to external storage?