Cloud Storage Solutions

Matching: hak

Never lose a host with IBM Storage Host Attachment Kit

DmitriyIsayev Tags: hak ‎ 677 Views

Host connection is a vital part of any storage system deployment procedure. Basically, a host is the physical computer or virtual machine that uses storage resources of the storage system, rather than having its own local storage. Accordingly, the hosts are defined on the storage system itself, allowing for this interaction.

Only hosts that are mapped to storage volumes can access those volumes on the storage system. Also, all host I/O operations must be equitably distributed among the storage interface modules. This workload balance is ensured by the storage administrator, who also monitors and assesses it over time when host traffic patterns change.

However, the host operating systems and network protocols come in different types and vendors. This variety presents a challenge to host administrators who must configure the host properly before it can perform on-going and uninterrupted I/O operations on the storage system. This is where the IBM Storage Host Attachment Kit (HAK) comes in handy.

The HAK for the IBM Spectrum Accelerate family – namely XIV, FlashSystem A9000 and A9000R, as well as the software-defined storage (SDS) Spectrum Accelerate deployable software – provides the host administrator with all the required tools for automatic and simpler host diagnostics, configuration, and attachment to the storage system. In addition, the HAK facilitates the monitoring and management of storage volumes from the host.

The HAK can be run on Linux (RHEL or SLES), Microsoft Windows Server, or IBM AIX hosts, and uses iSCSI or Fibre Channel SANs for connecting to the storage systems. Moreover, you can forgo the host installation altogether and use the HAK as a portable package (disk-on-key version). This allows you to run its utilities from a shared network drive or a portable USB flash drive.

Once the host is attached to storage system, defined on the storage device itself, and have the storage volumes mapped to the host, you can:

Display information about connected storage arrays and volumes.
Configure connectivity parameters.
Run host diagnostics.
Gather configuration information on the host and create host profile that can then be shared with different IBM internal technical support systems.

In all, the IBM Storage Host Attachment Kit is a nifty small-footprint program, indispensable for fast and smart storage deployment. Provided free of charge, it’s available for download from the IBM Fix Central.

For information about the latest version, check IBM Knowledge Center.

Modified on by DmitriyIsayev

Fresh from the oven CSS releases to integrate with IBM HyperSwap solution

DmitriyIsayev Tags: sra hak vss ‎ 998 Views

The long and arduous road to HyperSwap is over! We are happy to announce a release of a new software version of our blazingly fast FlashSystem A9000 and A9000R. This is version 12.1, which brings HyperSwap to our storage clients. HyperSwap solution is an ingenious way of providing high availability based on active-active pairing of storage systems per volume or per consistency group. Each volume or consistency group pair uses synchronous replication to keep both systems updated at all times. When certain conditions apply, an automatic and completely transparent failover is performed, so that the applications experience no downtime. As soon as the actual failure is recovered, the pair is automatically resynchronized.

For easier integration with VMware, Linux, AIX and Windows platforms, we've upgraded these Cloud Storage Solution products:

IBM Spectrum Accelerate Family Storage Replication Adapter, version 3.0.0 for combining VMware SRM failover capabilities with state-of-the-art HyperSwap high-availability solution.
IBM Storage Host Attachment Kit, version 2.8.0 for hassle-free attachment of Linux, Windows Server or AIX hosts to FlashSystem A9000 and A9000R storage systems in HyperSwap relations.
IBM Spectrum Accelerate Family Provider for Microsoft Windows Volume Shadow Copy Service, version 2.9.0 for fully automatic creation of snapshots on HyperSwapped FlashSystem A9000 and A9000R storage systems.

Upgrade now to unleash the full power of the HyperSwap disaster recovery!

IBM XIV Host Attachment Kit, version 2.5.0

DmitriyIsayev Tags: hak ‎ 2,330 Views

We are proud to announce that the IBM XIV Host Attachment Kit has been recently upgraded to a new version - 2.5.0. This release brings support for XIV microcode version 11.6.x, IBM Spectrum Accelerate 11.5.1.x, and RHEL 7.1. In addition, this version introduces a hot feature - the host-side acceleration (HSA) for improved iSCSI communication between Spectrum Accelerate and a host.
The improvement is achieved by efficient mapping of I/O operations to modules that store the required data. In a nutshell, instead of sending data across all paths and letting the storage arrays decide on correct forwarding, the host sends data directly to the correct module. This leads to faster handling of data by the host, with improved response time and throughput.

Another change is a deprecation of the -L option of the xiv_iscsi_admin and xiv_fc_admin commands, reserving the ability to list the attached storage devices for the xiv_syslist -L command only.

Modified on by DmitriyIsayev

Host Attachment Kit 1.7.1 has just been released

orenhe Tags: xiv hak hostattachment 1.7.1 host_attachment_kit ‎ 4,272 Views

The XIV Host Software team is happy to announce the 2011Q4 release of the XIV Host Attachment Kit, version 1.7.1.

Note that this is mostly a maintenance release with a couple of improvements. Upgrade is recommended but not mandatory. Go ahead and take HAK for a spin and tell us what you think in the comments below. In the provided link, you can get HAK 1.7.1 for all supported platforms, Host Attachment Guide, and platform-specific Release Notes.

Release Highlights

We recommend checking out the full list of changes and known issues for a specific platform in the corresponding Host Attachment Kit 1.7.1 Release Notes, available in the link above.

Overall quality improvement, focused on Windows and Linux platforms: we've fixed over 40 bugs and implemented over 20 improvements.
Provide detailed information the configuration steps HAK performs on the hosts, as we're aware that the host admins would really like to know that.

xiv_attach now presents a clear list of the configuration steps.
Added the "--verbose" flag to HAK tools. e.g. xiv_attach --verbose notifies about the changes HAK is about to perform.
Host Attachment Guide's appendix A documents the configuration actions.

Improved Windows KB installation, and clarified Windows KB requirements in the Release Notes
Improved Windows installer and portable HAK packages
Added support for Linux RHEL 5.7, 6.1 and 6.2.
Improved Non-English locale support

And we didn't stop there...
We've invested a lot in internal test and development improvements. Most notably we've increased the automated test coverage and improved our automated build environment. This allows us to provide you with a better tested, higher quality product.

Got comments? we'd like to hear them!

- The XIV Host Software team

Host Attachment Kit 2.0.0

RoyRothenberg Tags: xiv_host_profiler hak ibm host xiv ‎ 5,012 Views

Hello Everyone,

It's been a while, but now we're back with our brand new IBM XIV Host Attachment Kit 2.0.0!

You probably noticed that we made the jump to version 2.0.0, and for a very good reason: We have an exciting new feature we've been developing for the last 6 months - xiv_host_profiler.

xiv_host_profiler introduces a new approach in the way we provide support to hosts connected to XIV systems. The utility gathers information about your host's configuration, analyzes it against a set of best-practice rules, and enables pre-emptive identification of storage connectivity problems. And this is exactly why we recommend running it on a regular basis.

This feature is also tightly integrated into our latest XIV System release 11.2. By default, when using xiv_host_profiler, the collected information gets uploaded to your XIV System for further analysis. This ability will assist our technicians to ensure your hosts' health before commencing XIV System upgrades or other procedures.

For privacy reasons, the information collected by xiv_host_profiler is only related to your host's storage connectivity status - items such as the host's HBA model, installed OS version and the configuration state of the multi-path framework.

After collecting the information, xiv_host_profiler is also able to analyze it against a bundled set of rules:

The rules against which we analyze the host's configuration will be updated regularly and can be downloaded from Fix Central.

As mentioned before, it's best to run xiv_host_profiler at least once a week (in order to keep the data as up-to-date as possible). We provide an easy way to do so - simply run 'xiv_host_profiler --create-scheduled-task'.

As usual, you can read more about xiv_host_profiler (and other HAK utilities) in the Host Attachment Guide and Release Notes, as well as in the man pages included in the HAK package (how? simply run 'man xiv_host_profiler').

We believe HAK 2.0.0 and the included xiv_host_profiler will further improve on the way we support our storage systems and the hosts connected to them. We'd love to hear more from you about your needs and expectations in the comments.

In the meantime, you can download yourself a copy of the Host Attachment Kit for your favorite host's operating system, right here.

The IBM Host Software Team

Host Attachment Kit 1.10.0 Released!

RoyRothenberg Tags: hak ibm xiv host ‎ 2 Comments ‎ 6,163 Views

Hello Everyone,

Once again, we are proud to announce the release of the latest IBM XIV Host Attachment Kit 1.10.0.

The main feature of this release is Windows Server 2012 support. From this version onward, HAK is fully compatible with your new & shiny installation of Windows Server 2012. Go ahead and take it for a spin!

As part of our ongoing efforts to improve ease of use, we have translated the Windows Installer of HAK to Japanese as well, for the benefit of our Japanese speaking users. More languages to follow.

In addition to the above, we have also resolved several bugs and known issues from previous versions, including among others:

Increased reliability in regard to volume size reporting in xiv_devlist
Improved stability during the configuration phase of iSCSI connections on Solaris
Path counts are reported more accurately in xiv_devlist on HP-UX
We have resolved a known issue in xiv_syslist on HP-UX, regarding XIV System modules and ports connected to the host
xiv_diag now runs more smoothly on Red Hat Enterprise Linux and Suse Linux Enterprise Server distributions

Of course that's not all - You may read more about these improvements as well as the rest of the enhancements and fixes in the Release Notes.

We hope you will enjoy this new release of the Host Attachment Kit, at least as much as we enjoyed developing it!

Follow this link to download the installable or portable packages and access the release documentation.

If you have comments, questions or requests, please write to us in the comments section below. We'd love to hear from you.

The IBM Host Software Team

Host Attachment Kit 1.8.0 was released

ZivKalmanovich Tags: xiv hak ibm host ‎ 2 Comments ‎ 7,002 Views

We are happy to announce our newest edition of the IBM XIV Host Attachment Kit, version 1.8.0. This release includes a new utility and support for new operating system versions, as well as several bug fixes and code infrastructure improvements.

And now, let's dive into the details:
Starting with our cool new utility, called "xiv_syslist"... This new tool in the HAK will provide great assitance to host and storage administrators, by exposing useful storage array details from the server/host point of view. What kind of details? Without turning this post into a User Guide, the list of storage array details includes (for each array connected to the host): Array name, Array Serial, Management IPs, Connected Modules & Ports, Connectivity Types, Host Name Defined and Host Ports Definition State. The output can be formatted as xml or csv, as well as regular text output.The "xiv_syslist" utility is available on all platforms supported by the HAK.

Here is a screenshot, for first impression:

In addition we have broadened our list of supported OS versions and now it also includes: SLES 11 SP2, RHEL 5.8, Solaris 10 u10, AIX 7.1 TL1 and AIX 6.1 TL7.

We could not finish without mentioning the issues that were fixed in this version. While several minor issues have been fixed, the most encompassing one is an infrastructure revamp for the "xiv_devlist" utility, that has fixed many issues in the utility on all the supported platforms.

Now if this sounds good to you, here is the download link from IBM Fix Central. Here you can find the IBM XIV Host Attachment Guide and the HAK Release Notes for each of the platforms.

We would love to hear from you, please leave your questions and comments below.

Happy Easter and Passover Holidays!

The IBM XIV Host Software team

Announcing Host Attachment Kit 1.9.0

ZivKalmanovich Tags: hak host xiv ibm ‎ 7,525 Views

Hi Everyone !

It's HAK release time again !!
As part of our ongoing efforts to keep the IBM XIV Host Attachment Kit up to date and provide enhanced and new functionality, we are proud to announce the latest Host Attachment Kit version 1.9.0.

In this new version we have added support for several new platform versions:
Solaris 11, the recently released Red Hat Enterprise Linux 6.3 and the latest AIX 5.3, AIX 6.1 and AIX 7.1 Service Packs which introduce IBM XIV LUN 0 support.

But we did more than that. We have also enhanced the current HAK functionality by providing our UNIX & Linux users with manual pages accessible by using the 'man' command. Now you can access the documentation for each HAK command by executing 'man <HAK command>'.

In addition, in AIX OS, 'xiv_attach' is now capable of automatic discovery of connected XIV systems and host definition on the connected XIV, by utilizing the latest AIX 5.3, AIX 6.1 and AIX 7.1 SP, in which XIV LUN0 support was added. This aligns the XIV support in AIX OS with that of other supported OS-s. Moreover, LUN0 support also introduces a new HAK utility to AIX HAK users - 'xiv_syslist' , which you can read more about here.

The log collection utility, 'xiv_diag', was enhanced and now can be executed in unattended mode by providing the command with the destination path for the compressed log collection package as a command line argument.

Finally, additional bugs and known issues were resolved, and you can read more about them in the Release Notes.

Follow this link to download the installable or portable packages and access the release documentation.

Let's keep in touch!

The IBM Host Software Team

Feed for Blog Entries

Blogs