However, if you select the discover multipaths tab, the local array controller should still be listed. Please refer to the netapp interoperability matrix tool for compatibility information for specific hba, multipath driver, os level, and controllerdrive tray support. Linux multipathing provides connection fault tolerance and can provide load. Hp has also provided a dmmultipath enablement kit for hp eva storage. Now customer is migrating storage from ibm ds 5k to v7000. Hpux host system175 verifying the hardware and software requirements 175. It is likely that your linux system already has hps linux imaging and printing drivers hplip installed. To use linux native multipath software, you must install the linux multipath tools package as described in installing or updating the linux multipath tools package. This release notes discusses the recent product information about hp device mapper multipath hpdm multipath enablement kit for hp storageworks disk arrays v4. Hp storageworks using the qlogic hba driver for single. Abstract this document contains driver, firmware, and other supplemental information for the qlogic fibre channel host bus adapters hbas and converged network adapters cnas for proliant and integrity servers using linux, windows, vmware, or citrix operating systems.
Use the multipath f command to disable multipathing to a specific device. Dm multipath red hat enterprise linux 7 red hat customer portal. Multipath subsystem device driver users guide gc52908. Ds4700 multipath driver report forwarded to debianbugsdist lists. Before configuring the linux operating system for a host that attaches to the storwize v7000, you should ensure that the correct device mapper multipath tool dmmp has been installed and configured correctly for the linux hosts which use dmmp as a multipath driver. Some software requires a valid warranty, current hewlett packard enterprise support contract, or a. This should bring the luns in control of device mapper multipathd. It provides new support for microsoft windows server 2003, standard edition and enterprise edition, as well as support for service pack 4 for microsoft windows 2000 server and advanced server. They do, however, show a single controller in evaperf which is what i would have expected. Strictly software vendors like veritas also provide linux multipathing solutions. Hp printers linux support for hp printers hp customer. In hpux 11iv2 operating systems to manage multipathing we used third party tools like secure path, auto path etc. S and hence a single command called as ioscan m hwpath will give you the number of paths related to the virtualized hardware address but to know this you should be aware that 640000xfa00lunid is the hw address related.
The multipathtools package supports pretty much every vendor. When you configure multipath io for a device, the multipath driver monitors the. Linux fcoefc driver kit for hp branded qlogic cnas, hbas and mezzanine hbas. If you need to download linux drivers, you will be directed to a website that is outside hp customer support. Instead of installing the original devicemappermultipath package there is a simillar package from hp called hpdmmultipathversion. Ds4800 multipath driver multipath for solaris with ds it should compile the source code, install the module, and create a new initrd image. Lvm and multipathing sample lvm filter strings the.
The test was performed with lifekeeper for linux v8. When running multipath ll, i can see the two controllers and all 8 paths but on all the luns only one controller is doing all the work. Certified by hewlettpackard company using sios lifekeeper for linux v7. Linux distributions contained drivers that were multipath aware. The multipathing drivers and tools support all architectures for which suse linux. Supported multipath drivers the information in this table is intended to provide general guidelines.
The following are the steps to setup dmmultipath on centos rhel. I have suse linux 10 sp3 in running on ibm power server with rdac driver of ibm storage. In scenario 2, a single nonfading multipath component with additive white gaussian noise awgn is modeled. After above scan, the new assigned luns are visible in linux os level, but still multipathd daemon will show no mappings for new luns. Both single path and multipath configuration require the dmmp recovery kit and the hp dmmp software. Use the linux command modprobe to add the loadable kernel modules dmmultipath and dmroundrobin. Overview of migrating to the linux dmmp multipath driver 46. Edit blacklist section of etcnf file the blacklist section of etcnf file specifies the devices that are not used as a. It provides an alua solution when used with cfw version 7. Furthermore, access to san storage is often multipathed i. Native multipath failover is packaged with the hpux operating system software.
Storage system oem vendors like ibm, hitachi, hp, fujitsu, and emc have provided multipathing solutions for linux for several years. Recommended nf settings hp 3par storage on rhel6 solution verified updated 202001t14. For linux downloads, hp recommends another website. Currently red hat enterprise linux 4 or later and suse linux enterprise server. Click the link on this page if you want to continue. Device mapper is an infrastructure in the linux kernel. You should not attempt to add these types of local devices to the devices. When the multipath driver detects io errors for an active path, it fails over the traffic to. Solaris mpxio tpgsalua solaris version 11 or later. Download linux drivers from the hp linux imaging and printing web site. Select system, administration, update manager to scan your system for available software and hardware updates. If you enable multipathing, then you have a multipath disk for example, devmultipatha, which can access both devsdb and dev sdc.
In this case, it is a hp controller on a hp server. Getting multipath information the unix and linux forums. Previously hp had a kit to enable the native opensource multipathing solution called device mapper multipath enablement kit for hp storageworks disk arrays nowadays hp recommends to read a document called native linux devicemapper multipath for hp storageworks disk arrays reference guide to enable the native opensource multipathing solution. Hp msa2012sa, msa2312 fcisa, mca2324 fcisa, msa2000s volume. The hp linux imaging and printing hplip is an hpdeveloped solution for printing, scanning, and faxing with hp inkjet and laser based printers in linux. When such a device is first encounted in udev rules, it is treated as a multipath device. It provides a generic way to create virtual layers of block devices. Lg534ua for samsung print products, enter the mc or model code found on the product label. My physical windows servers are showing as using both controllers even though the path preferences are set to prefer a path. Granted, this is an eva i have so it could very well be different. To see which modules are loaded in your linux system, use the commands lsmod and modinfo for module information. Other than local storage, users commonly create lvm devices on san storage.
Suns native path management software is sun storedge traffic. Typical connection problems involve faulty adapters, cables, or controllers. With newer linux versions, updates, and service packs, these drivers no. Enabling and disabling multipathing in the linux operating. This article describes you the step by step procedure to configure the multipathing in linux rhel7centos7 using device mapper multipathing dmmultipath and helps you to understand the multipath configuration device mapper multipathing dmmultipath is a native multipathing in linux, device mapper multipathing dmmultipath can be used. It is likely that your linux system already has hp s linux imaging and printing drivers hplip installed. Model tested was the hp p9500xp and has been qualified to work with lifekeeper on the following. Useful fiber channel and multipath commands posted on march 6, 20 by ben 8 comments so this was an interesting exercise i had the other day on one of our hpux servers that took me quite a bit of time to research. By downloading, you agree to the terms and conditions of the hewlett packard enterprise software license agreement. Qlogic fc hba driver has provided multipathing across qlogic fc initiators since 2002. Hp allinone printers driver support for linux os hp. For example, to add information about the hp openv series the entry looks. Multipath support for hosts running the linux operating system. Use the multipath f command to disable multipathing on all multipathed devices.
Dmmultipath red hat enterprise linux 6 red hat customer portal. Linux san multipathing hp storage thomas vogts it blog. How to configure multipathing in linux rhel7centos7. Click enable to set your selected drivers to use and to include them in future system updates. In the case of devicemappermultipath, the native oracle linux multipath solution, the following devices might exist that all reference the same san lun. Linux fcoe fc driver kit for hp branded qlogic cnas, hbas and mezzanine hbas by downloading, you agree to the terms and conditions of the hewlett packard enterprise software license agreement. Windows server 2012 and multipath io to storage area. You will have to refresh multipathd daemon to map the new luns.
Hpdm multipath software kit is an hp released device mapper multipath binary, based on device mapper multipath included in linux operating system distributions, with enablement for hp storageworks disk arrays. It is possible to update a version level of eternus multipath driver hereafter referred to as multipath driver to a later one by applying a patch. When you configure multipathing for a device, the multipath driver. How to scan newly assigned luns in multipathd under centos. System preparation raiddev devmd2 raidlevel multipath nrraiddisks 2 persistentsuperblock 1 chunksize 8 device devccissc0d2p3 raiddisk 0 device devccissc1d2p3 raiddisk 1 completing the linux multipath setup after a valid raidtab file is created in the etc directory, verify that the correct drivers and modules are loaded.
The following procedure shows how to modify the multipath configuration file to ignore the local disks when configuring multipath. Hpdm multipath software kit is an hp released device mapper multipath binary, based on device mapper multipath included in linux os distributions, with enablement for hp storageworks disk arrays. Change driver order in etcsysconfigkernel by inserting dmmultipath driver if it is absent and moving qla2xxx to the last position of the list, for example on dell servers. Linux drivers are not provided on the printer installation discs packaged with new printers. I have seen this on hp nsr tape routers when they change the firmware multpath the fix is to get the updated inf file. When you configure multipath io for a device, the multipath driver monitors the active connection between devices. The system may access either devsdb or devsdc, but the access is to the same disk.
Installation and reference guide device mapper multipath. Novell testing was completed by the hp storage group. View online or download hp smart array multipath user manual. If a raid volume, lvm volume, or volume mount have been placed over the device node of the multipathed disk, quiesce the volume. Most major linux releases include the hplip drivers with the distribution installation. Linux san multi path for hp eva storage lazysystemadmin. Hp multipath device mapper for linux software setaoffice. The hplip project provides printing support for over 1,500 printer models, including deskjet, officejet, photosmart, psc print, scan, copy, business inkjet, color laserjet, edgeline mfp. Hpdm multipath software kit is a hp released enablement kit for hp storageworks disk arrays, based on device mapper multipath included in linux operating system distributions. Device mapper multipath in their linux server environment, assuming that you are familiar with linux system administration, including hardware and software installation. Hosts using this multipath driver should use the linux dmmp host type in santricity. When you configure multipath io for a device, the multipath driver monitors the active.
539 360 1331 1222 988 1573 365 365 1184 1214 464 854 929 1437 324 327 1295 311 294 622 707 88 56 1075 1154 670 905 769 216 893 497