Summary: This is the second WD Caviar Green HDD that I bought for my Synology DS210j NAS. So far both HDDs have been working without a problem, but, there are some caveats. Fisrt, the sleep timer in the HDD firmware is set for 8 seconds, and, with the flush data instruction on the NAS set to 10 seconds, the HDD will be constantly turning on an off 6 times in a minute, wearing it prematurely; to switch the function off you would need to get a PC with a SATA port and run the...
Summary: I bought two of these to go into my Netgear ReadyNAS Duo (I immediately updated the firmware on the ReadyNAS to support the drives, so that wasn't an issue). The drives were quiet, but I noticed a faint clicking sound on occasion. After a bit of research, I discovered that the sound was from the heads "parking" frequently.
Summary: I purchased a single bare drive to expand my storage capabilities. The drive is constantly shuffled between three external SATA docks. I installed the drive and performed a full format on the drive, zeroed it out and redid the format to ensure the drive had no defects from the factory. After the (expected) painfully long process, all was well and many bits were transferred.
Summary: Note that this is an OEM drive: no screws, cables, instructions, or anything else in the box. If that's what you expect, the disk is for you. The cardboard box is small, but the disk is surprisingly well protected, while easy to open -- a good packaging design. I installed it in Windows Vista (had to use some screws included with the computer specifically for additional drives, also had to purchase separately a SATA drive -- all as expected.
Summary: This drive is doing it's job with no problems. It stores my media library and does that job just fine. At times it seems to take a while to spin up, but other than that I don't have any complaints.
Summary: The bare drive arrived promptly and in perfect condition, as expected. Keeping in mind that "bare" means no cables, screws or software, the repalcement installation was effortless. The Dell BIOS recognized the drive immediately. After partitioning into two 1TB partitions, have been using the drive as data storage and backup. The "Green" designation means lower power consumption and appears to translate into longer spin-up times and overall slower access speeds.
Summary: The 'advanced format' feature of this drive reduces overhead by using 4 kilobyte sectors instead of the traditional 512 byte sectors. The old format gave a format efficiency of 87%. Advanced Format results in a format efficiency of 96% which increases space by up to 11%.
Pros: 4k cluster size (advanced format which will become the new standard for HDDs by 2014). Quiet, cool running (32 C in my system) large, fast for a 5,900 RPM drive, economical storage ($139 with free shipping -$30 rebate with promo code EMCYTNS23 (ends 6/27/2010) = $0.06/Gig!
Cons: Firmware from WD causes the drive to attempt to park read heads once every 8 seconds which is completely useless and adds wear to the system in my opinion. You can see this reflected in the "Load_Cycle_Count" parameter as read by any SMART compatible reader such as smartmontools.