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Last week, HP Storage Division took the lion’s share at HP Discover. Almost every product in the portfolio has been updated, except for the small P2000. While new 3Par models has been the superstars, and StoreAll got great interest, there has been many news also about my beloved LeftHand.

I should be honest, I appreciate this technology all along: linear scaleout, redundancy by network raid, but also ease of management and a complete set of features without any additional required license has always been great points while evaluating it.

Previous models were starting to be a little outdated, so HP introduced a completely new lineup.

Oct 10, 2013 The HP StoreVirtual FOM (or LeftHand, if you are nostalgic of the old name) is a small linux-based virtual machine, with the only role of witness in a StoreVirtual multi-node, so it can have an odd number of nodes thus ensuring a proper quorum. Support are asking for the serial number for my virtual SAN. I have looked on the hosts and no sign of a serial number which I'm told will start CZ3 or SGH. Can anyone help with this please.

The new LeftHand, ops I mean StoreVirtual

The very first news, even if already known from some time, is the name itself: LeftHand has become StoreVirtual (Store-something is more in general the name of the new HP storages). “Virtual” seems to be the core element of the products, even if there are 5 new hardware models; nonetheless also the VSA (virtual storage appliance) has been updated.

The name “Leftand” however has not disappeared: the operating system previously known as San IQ has become LeftHand OS, and its first version is 10.0 (San IQ last version was 9.5).

The new hardware models

HP addes 5 news StoreVirtual hardware models. All of them are based on the new server architecture Generation 8, thus adding a visible news: they are all now 1U tall, while previous models were 2U. For really dense installations, or for hosted costumers, a 50% reduction in rack usage is a great improvement.
For sure the usage of Gen8 servers has brought other benefits: more powerful CPUs, faster RAM, more efficient controllers.

Disk subsystem deserves a deep examination. First of all the controller: now it’s a new P420i, with 2 Gb onboard cache. There are no more 3.5″ disks, replaced by 2.5″ disks. Also, there are no more 15k rpm disks, but only 10k. HP told me the higher density of those disks and the new controller conbine for better performances anyway, improving at the same time price and power consumption.
There are no plans at the moment for new SSD based models. For those of you willing to use SSDs, you can still buy the 4900 verison, or build a server with SSDs and run VSA on top of it.

The new models’ details are:

Connectivity

there is a real news about the frontend: for the first time ever a LeftHand storage is no more iSCSI-only, but offers also FC connectivity. This addition brings some interesting commercial advantages, targeting now those customers where FC is mandatory so they would not have bought an iSCSI-only storage. Furthermore, the FC model has from the beginning all the 1G and 10G iSCSI connections available.

Better explain this: FC connectivity is available only on the FrontEnd. BackEnd as always is managed via iSCSI interconnections between the nodes of the cluster, and both replica and management are done here. The usage of 4 Gbit connection instead of the previous 2 has been done to better manage the higher troughput of the new models, especially for replica activities. This new design allows new configurations, as HP guys explained to me in this outline:

• You do not need to use FC-based StoreVirtual for all the nodes. You need at least 2 FC nodes (for redundancy) to export a LUN via FC, while the LUN itself is then replicated a spread among all nodes, even those with iSCSI only (red lines in the outline). This allows you to add FC models to an existing cluster if you want, or use them to do migrations from FC-only storages towards a StoreVirtual system
• In the past some customers complained for the need to connect via the iSCSI network to manage them. Having only 2 connections, you were force to use both in the same subnet to guarantee redundancy for eveery node. Now, with 4 connections available, you can use one of them for management purposes, using an IP address completely different from those of the iSCSI network (pale blu in the outline). So, we can say now StoreVirtual has a management connection!

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• Remote Copy: the code has been improved and now HP claims it can reduce copy operations up to 3X
• Active Directory Integration: you can now authenticate users or groups based on Active Directory. There are still only Administrators or Read-Only roles, but HP guys told me they are working on a more granular permission schema.
• Selective Download: this is a little but appreciated improvement. FOr those of you who already used LeftHand in the past, you know the first set of updates were about 7-8 Gb, and you would need to download all of them before applying the updates. Now you can use this feature to download only the needed upgrades.
• Active Tasks Box: it’s a small box in the right of the console where you can see all running tasks, also those scheduled (and invisible in the past). This is useful when you need for example to check if a scheduled snapshot is running, without opening the snapshot section or the logs.
• FC management: this is the real new area of the GUI, obvously needed to manage FC of the 4330FC model.

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