** Description changed: Binary package hint: gparted I just got myself a WD-2TB-Green 2TB hard disk drive without checking the forums first, implicating that problems from the - rennaisance of computing, e.i. the last decade should not matter any more. I was naive again. + renaissance of computing, e.i. the last decade should not matter any more. I was naive again. EARS-Type drives have two annoying "features": for their capacity, they are transitional 512-Byte-Sector internally and 4096 Byte sectors - externaly. + externally. Palimpsest informs me, that the partition is misaligned by 512 bytes - which is natural, as the default partition start in linux is 0x63 - 512 Bytes short. It does not offer further help how to fix this - neither does gparted. Performance is ugly, like 40 MB/s instead of >=100 MB/s. I also learn from the forums again that like some notebook drives back in 2007/2008 the EARS is parking every 8 seconds and woken up every 20s by the kernel when used as system drive. So either fuddling around with some obscure WDD-DOS tool or hoping that smartmontool's smartclt -s 242 /dev/sdX will save the day. Luckily, you only buy large terabyte green-style drives for archiving/data server. Raiding those makes it even worse, as there is only a message of mkfs.xfs that 4096k-Sectors are not supported by XFS. Good that my system is on the nice 40gb cheap and fast intel v-series ssd. No parking probs noted here. As a result, my 2-disk stripe does 50 MB/sec where it should to in between 200-100 MB/sec for large files. It is so obvious when copying from a standard-raid0 with 2 samsung blues: 0 MB for 2 secs, then 300 MB for a sec then nothing again like | | | | in gkrellm. Sad. And someone clever posted, that for zfs (or zfs-fuse) there is no way even to tell right now how things are there. -> ZFS-fuse should be ok though when getting xfs-based large files as containers for devs. Please (upstream involved) - fix gparted, parted, fdisk, palimpsest to recognize 4k-sector drives and adjust partition boundaries accordingly upon creation - at least add an option to do so - fix xfs / mdadm to handle 4k striped arrays - Include a "disable head parking" somewhere graphically for newbies. I havent looked into btrfs, though. + + To keep blood pressure low ;-) haha - I am not going into the TLER problem, in my case I would rather want my drive to report failed too soon then the other way round - meaning it would be nice, to enable tler. What have they thought at wdd? Greens are not for running a system from - just for backup and mid-performance raids. And they take away the most importand things... sad. + Next time it will be Korea again :-)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/780093 Title: No way to align 4096/4k-HDDs properly -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
