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    Is it possible to change cluster size without loosing data?

    I wouldn't try that without a backup ... especially with a volume that big.
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    3TB / 4TB drives for zfs (4k advanced format)

    Hitachi offers a 3TB Model with real 512 sectors, the HDS5C3030ALA630, probably the last of the non AF drives. I re-checked the site specs and the PDFs twice, it really says Sector size: 512 .... and not 512e (emulated) like all the AF drives they offer. I might get those for my NAS 2.0 Project.
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    Are you waiting for the HDD prices to go back down?

    I am waiting .... I just can't afford the 12x 3TB drives right now -minimum 12 drives that is.... 24 if I go for fully loaded new NAS :eek:
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    Storage read/write performance: my work PC vs my $2,000 laptop

    Most likely thanks to all the .NET updates, they have always been soo time consuming even on the fastest systems.
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    The [H]ard Forum Storage Showoff Thread - Post your 10TB+ systems

    Thx for the info on the EU Norco distributor, will look into that some more while I plan my NAS 2.0
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    How much power does your storage rig draw?

    AMD 6-core, 16GB RAM, 14x 2TB WD Greens 5400rpm idle with HDD spindown 110 Watts during scrub 210-220 Watts
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    The [H]ard Forum Storage Showoff Thread - Post your 10TB+ systems

    The NORCO is not available here in Germany. There are similar 4U-24x hotswap cases available, like the Supermicro 846TQ-R900B, starting at 1000€ / US$ 1300. That is :eek: compared to $400 for the NORCO RPC-4224. The second issue would be NOISE, I certainly won't run one of those with the...
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    The [H]ard Forum Storage Showoff Thread - Post your 10TB+ systems

    I built the system about a year ago - since then the HDD prices went up due to the flooding in Taiwan. All parts at current prices (incl. small things like the 5.25" HDD adapters or the SAS x4 (SFF-8087) to 4x SATA cables) would bring the total to somewhere around 3000€ / US $4000, about...
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    The [H]ard Forum Storage Showoff Thread - Post your 10TB+ systems

    28.168 TB Case: Fractal Design Define XL Mobo: ASUS M4A89GTD Pro CPU+HS: AMD Phenom II X6 1090T + Scythe Mugen 2 Rev.B RAM: 16GB (4x4GB) Kingston KVR1333 ECC Memory PSU: Enermax MODU82+ II 625W NIC: Intel Gigabit CT Desktop Adapter, PCIe x1 Controller: Intel SASUC8I, PCIe x8, 8x...
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    ZFS and hardware failure

    Just connect the HDDs to new systems mobo/HBA and import the ZFS pool in new system, it is independent from former used Hardware.
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    Windows App To Nuke Drive

    What Windows? Vista and 7 (Server 2008 and 2008R2) would be sufficient for most needs using SLOW FORMAT which zeroes every sector. This does not work for XP and older (Server 2000/2003)! Secure-deletion-a-single-overwrite-will-do-it
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    would encrypting a hard drive with a long password then selling be secure enough?

    A slow format with Vista and up is good enough. Slow format writes zeros to every sector starting with Vista (XP does not and requires extra work to secure erase HDDs). Or use a Linux Live-CD with dd to zero your HDD...
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    SSD drive for OS worth it?

    Another YES from here! I actually had to downgrade from a dying SSD to HDD, I imaged the OS and the difference was eye opening. You know that annoying waittime right after login when the desktop shows but you can't start work for the next 1-2 minutes because windoze is still loading? I almost...
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    Who else has an SSD that died?

    My Super Talent UltraDrive GX 128GB (FTM28GX25H) died on me after 18 months use as OS drive. I was able to get an Image of my Data before the drive became completely inaccessible. It started with a BSOD and SSD not being recognized by AHCI BIOS during boot though it worked again after reboot -...
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    No raid for green drivers?

    Regarding ZFS: from http://hardforum.com/showthread.php?t=1500505
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    Disappointed with write performance of new ZFS/ESXi server

    I get ~70MB/s CIFS speeds using 14x 2TB (4k without special treatment) in one raidz2 with encryption on (dedup/compr. off) via single Gbit on my SE11 fileserver. Seq-Wr-Blck = 367 MB/s / Seq-Rd-Blck = 761 MB/s --- scrubbing runs up to 260 MB/s
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    Server Power Consumption

    My fileserver with 14x 2TB WD Greens / 16GB ECC RAM / 6core Phenom consumes 120W on idle and maxes at 200W while scrubbing the ZFS pool.
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    When will ZFS use RAM ?

    Here's another way to see how much RAM your ZFS uses on SE11 ... my performance monitor also shows only 650MB in use (4%) ;) docsilly@nas:~# nice -10 echo "::memstat"|mdb -k Page Summary Pages MB %Tot ------------ ---------------- ---------------- ----...
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