January 09, 2015
Virtualized storage earns a node on 3000s
Another way around the dilemma of aging 3000 storage invokes virtual data services. In specific, this solution uses the HP DL360 ProLiant server as a key element of connecting RAID storage with MPE/iX. Instead of older storage like the VA arrays, this uses current-era disks in a ProLiant system.
Because there's an Intel server involved, this recalls the 3000 virtualization strategy coming from Stromasys. But the product and service offering from Beechglen — the HP3000/MPE/iX Fiber SAN — doesn't call for shutting off a 3000. It can, however, be an early step to enabling a migration target server to take on IMAGE data. It also works as an tactical tool for everyday homestead operations.
Beechglen's got both kinds of customers, according to Mike Hornsby. He summed up his offering, one that's available as an ongoing data service ($325 a month for 6 TB mirrored) or a $4,900 outright purchase with a year of support included. The company leveraged an MPE/iX source code license to build the SAN.
Having the source code to MPE/iX allowed us to provide an interface to our in-house developed FiberChannel targets that run on HP DL360s. This allows up to 6TB of RAID 1 storage in 1U of rack space, and provides advanced functionality, like replication and high availability.
He adds there are IO performance improvements in this solution, starting at twice as fast up to 100X, depending on what's being replaced. The company recommends an upgrade to an A-Class or N-Class to take advantage of native Fiber Channel. The SCSI-to-Fiber devices tend to develop amnesia, he explained, and the resultant reconfiguring for MPE is a point of downtime. "Those were never built for MPE anyway," he said of SCSI-to-Fiber devices.
The Fiber SAN runs CentOS Linux, and the MPE/iX LUNs are files.Hornsby said the additional storage also allows splitting the traditional 'store to tape' backup into two steps, first to disk, and then to tape. Or to a network server, or to cloud storage. "The idea is to have an onsite backup," Hornsby said, "and an offsite backup for disaster recovery purposes."
One of the most frustrating times in the support role is waiting for tapes to be delivered from offsite storage and then waiting for the slow tape to disk restore. So far we have found that replacing the storage, and providing cloud storage, is less expensive than the onsite maintenance and the tape handling and storage costs.
He adds that "many high end HP 3000s are still using Mirror/iX, Model 20s, VA arrays, and 12H arrays, not to mention dozens of unprotected disks. The vast majority of hardware service calls and system down times are due to replacements of disks and tape drives."
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