Quantum DLT-S4 Tape
Quantum’s novel tape model is launched in 1 trial every 2 years in addition to launched before this twelvemonth inwards the cast of DLT-S4.The outset in addition to most obvious novelty is its name: Quantum removes "Super" from the prison theatre cellphone cite in addition to reverts to the master copy abbreviation of "Digital Linear Tape" to halt SDLT-320 in addition to SDLT- before both models 600.
Now, amongst the faster LTO (Linear Tape Open) devices, the DLT proprietary applied scientific discipline of these tape drives is no longer the most pop choice. Quantum hopes to opposite this tendency past times providing ultra-high capacity, providing upward to 1.6TB of compressed information on a unmarried reel. In addition, Quantum also has its powerful administration application DLTSage every bit an integral purpose of the novel tape device driver.
DLT-S4 offers twice the capacity of LTO-3 competitors, in addition to Quantum makes this technological payoff to a greater extent than attractive in addition to competitive. The DLT-S4 is exclusively slightly to a greater extent than expensive than the SDLT-600 or LTO-3 devices, in addition to its recording capacity is exclusively one-half or less. The DLT-S4 also puts information at to a greater extent than than double the speed of its predecessors, in addition to its nominal transmission charge per unit of measurement is every bit high every bit 120 MBps every bit the compression rate.
Need a lot of examination beds
The DLT-S4 surgical operation in addition to capacity degree tapes tin arrive at the sack survive used for examination bench components to perform some heavy work. I tested the novel tape on a Windows Server 2003 estimator in addition to installed 8 Western Digital Raptor 74GB drives in addition to 1 LSI MegaRaid controller amongst RAID v installed on the computer.The Iometer examination for LUNs exceeds 180 MBps, plenty to challenge DLT-S4. I connected the desktop tape's Ultra320 SCSI interface to the Adaptec 39320 controller on the same server.
The DLT-S4 has the same lunchbox shape every bit its predecessor, the SDLT-320, but a closer hold off at the parent of the unit of measurement volition discover some layout changes, including SCSI controllers, fans, in addition to ability provide locations.
The front end of the unit of measurement is roughly the same, but I appreciate a larger pop-up push even out amongst the lid, making involuntary drills less likely.
Quantum bundles the tape amongst the total license of Symantec Backup Exec 10. I utilization this license to execute most examination scripts; however, I cause got no problems running backups in addition to recovering other applications such every bit native Windows backups in addition to CA BrightStor ARCserve.
No rubber slouching
If yous shop sensitive information on tape, the safety features of DLTSage itself are sufficient to deploy DLT-S4. To examination this feature, I started the application in addition to clicked the Tape Security tab. Influenza A virus subtype H5N1 novel window opens amongst the alternative to add together a safety commutation in addition to teach the tape driver to add together the commutation to all cartridges created on the device.
DLTSage volition non survive besides picky most the commutation yous specify in addition to volition convey anything betwixt 8 in addition to 32 characters. It is worth noting that the dorsum door of the forgotten commutation was non found, which made information leakage difficult, but it also made the tape safety easily forgotten in addition to forgotten. Without the right key, yous volition non survive able to access the cartridge from whatever application.
After setting upward tape security, every bit long every bit I provide the right key, my backup in addition to recovery tin arrive at the sack run without problems.
Slow but stable
In lodge to fill upward the particular capacity of the DLT-S4 reels, I ran a serial of planned full-backup servers, similar to how real-world tape drives were used.My backup application Veritas BE (Backup Exec) requires a 65GB backup bike each fourth dimension to install some other tape. After checking the BE statistics, I saw that the tape stored a large amount of uncompressed 785GB of data, rattling about the theoretical limit.
Tape surgical operation is also about the crusade limit, in addition to compression speeds upward to 108MBps, but to accomplish similar results, yous require some sort of "perfect storm" component, including information that tin arrive at the sack survive compressed in addition to the source disk organisation (such every bit my Raptor array). Keep transmission rate.
The Quantum DLT-S4's outstanding speed is soundless far below the LTO-3 nominal 160MBps, but customers may similar its large capacity, moderate cost, in addition to powerful administration features. Obviously, the battle for tape format inwards the mid-range marketplace position is non over.
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