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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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 ...
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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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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 ...
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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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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 ...
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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) ...
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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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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 ...
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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. ...
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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 ...
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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 ...
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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 ...
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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 ...
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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-...
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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 ...
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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 ...
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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 ...
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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 ...
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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....
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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 ...
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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 ...
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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 ...
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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 ...
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-1 votes
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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. ...
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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. ...
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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 ...
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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 ...
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5 votes
2 answers
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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 ...
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3 votes
2 answers
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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?
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Connecting two computers directly using Fiber

At my workplace, we have an electron microscope that is hooked to our storage server using a 10g FC connection. Due to unknown reasons, we are experiencing some issues with the connectivity. As plan ...
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Fibre channel zoning with VMware datastores

If I have multiple VMware ESXi servers controlled by vCenter that share a datastore over FibreChannel, what is the best practice for zoning those connections? I see two obvious ways to do this: ...
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Automatic backup of brocade switch FC configuration

What is the best way to set up automatic backup for switch FC configuration? I have searched the web and came across https://code.google.com/archive/p/save-simply-your-san/ , but it looks like it ...
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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 ...
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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/...
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Unable to access server using remote desktop and detect access point in controller software at the same time

I have following topology: I am not a networking expert but somehow using the help of the Internet I was able to successful configure my topology so that I can access the Server remotely from any ...
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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.
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Can I use a HBA to connect to Internet

I recently got a QLogic QLE2460 network card which seems to be a Host Bus Adapter. Can I somehow use it as a network interface (NIC) between my server/workstation and a Cisco Catalyst switch with ...
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FibreChannel-SAN SCSI-block-devices get lost

There are 3 LUNs on a FC-SAN I want to access using 2 HBAs (with two paths each. When the system is booted, everything seems fine, but after a while the sd*-devices from the second HBA disappeared ...
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ESXi FibreChannel Woes

I just recently got VMWare ESXi installed on one of our servers. I installed some fibre channel cards (QLogic) and for some unknown reason they show up in the storage adapters tab as an ISCSi Adapters....
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Can I use Emulex fibre channel ports to set up a network between my servers? [closed]

I recently got my hands on a couple of old Fujitsu servers, all of which contain two PCIe fibre channel cards (Emulex ones). I also own a fibre channel switch. Is it possible to use the FC ports as ...
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100BASE-FX WDM vs 100BASE-BX vs 100BASE-BX10 - Are they all the same?

Are these three all the same thing being inconsistently named by different manufacturers? 100BASE-FX WDM uses separate wavelengths (1310 nm & 1550 nm) for Tx & Rx over a single strand of ...
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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 ...
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4 votes
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Fibre channel: LTO tape overwritten on bus reset

There is a situation that we had at out customer that I'd like to understand better. Here's what happened: A library with LTO tape drives is connected to a fibre channel environment Archiving ...
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Can you connect a SAN directly to a HBA with Fibre Channel?

I am in the process of sourcing our company's first SAN as we have the need for high availability/shared storage. I have noticed fibre channel switches are extremely expensive, and for redundancy we ...
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2 votes
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VMware ESXi config pass-through for Fibre Channel

I want to config pass-through for FC in VMware ESXi 5.5 (FC HBA: ISP2532-based 8Gb Fibre Channel to PCI Express HBA) follow the link https://tinkertry.com/usb3passthru. But when I turn on the virtual ...
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Relationship between device queue_depth and HBA ql2xmaxqdepth

RHEL 6/7 server with dual-port FC hba: There's a queue which may be adjusted via the QLogic HBAs ql2xmaxqdepth kernel-module parameter. And there's a queue for each block device, eg /sys/block/sdf/...
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How can I distinguish between SAN zoning and LUN assignment issues on RHEL6?

From Red Hat Enterprise Linux 6 how can I tell the difference between a SAN zoning problem (e.g. cannot reach the storage at all) versus a LUN masking issue (e.g. LUNs not assigned to the right HBA ...
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Dell R730 with QLogic 2660 16Gb FC HBAs connected to a Brocade 300 8Gb FC Switch? Will it work?

We have a standard shop with 3x Hypervisors running VMware vSphere 6.0. The hypervisors are currently connected via 8Gb FC link to a Brocade 300 (8Gb FC) switch, which is then connected to our ...
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4 votes
2 answers
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Removed cluster disk that wouldn't come online, now it wants to be formatted. Can I recover the data?

I inherited a failover cluster hosting several VMs and some storage volumes. It uses a fibre-channel SAN for storage. I updated firmware on the SAN controllers recently and when it came back up one of ...
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Centos 6.7 Emulex LPE12002 on Dell can 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-...
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