search for: 512e

...bootable except possibly by systems with UEFI firmware. It's also > possible hardware RAID will reject them unless explicitly supported. > > http://www.hgst.com/tech/techlib.nsf/techdocs/29C9312E3B7D10CE88257D41000D8D16/$file/Ultrastar-7K6000-DS.pdf > > > > Some have better 512e emulation than others. Looking for some advice on > > which to avoid and which are recommended. Thanks. PS this is for a > CentOS6 > > server. > > The emulation implementations don't come into play if the alignment is > correct from the start. The better implementations...

Still have good quality older sata hardware raid cards that require 512 bytes/sector. As far as I know HD manufacturers are not making native 512 bytes/sector drives any more. Some have better 512e emulation than others. Looking for some advice on which to avoid and which are recommended. Thanks. PS this is for a CentOS6 server.

...pr 3 15:15 auto -rw------- 1 root root 430 Dec 11 13:14 name1 -rw------- 1 root root 610 May 7 12:07 name2 -rw------- 1 root root 303 Nov 4 2009 name3 -rw------- 1 root root 295 Oct 29 2009 name4 (...) Here is one guest that works: name = "name3" uuid = "958f8695-95e0-b43c-512e-2ca8950d35de" maxmem = 900 memory = 900 vcpus = 1 bootloader = "/usr/bin/pygrub" on_poweroff = "destroy" on_reboot = "restart" on_crash = "restart" disk = [ "tap:aio:/vm/mail3.img,xvda,w" ] vif = [ "mac=00:16:36:4f:d6:11,bridge=xenbr1,scri...

Hi, my oi151 based home NAS is approaching a frightening "drive space" level. Right now the data volume is a 4*1TB Raid-Z1, 3 1/2" local disks individually connected to an 8 port LSI 6Gbit controller. So I can either exchange the disks one by one with autoexpand, use 2-4 TB disks and be happy. This was my original approach. However I am totally unclear about the 512b vs 4Kb issue.

Hi. Is the problem with ZFS supporting 4k sectors or is the problem mixing 512 byte and 4k sector disks in one pool, or something else? I have seen alot of discussion on the 4k issue but I haven''t understood what the actual problem ZFS has with 4k sectors is. It''s getting harder and harder to find large disks with 512 byte sectors so what should we do? TIA...

...t expect these drives to be bootable except possibly by systems with UEFI firmware. It's also possible hardware RAID will reject them unless explicitly supported. http://www.hgst.com/tech/techlib.nsf/techdocs/29C9312E3B7D10CE88257D41000D8D16/$file/Ultrastar-7K6000-DS.pdf > Some have better 512e emulation than others. Looking for some advice on > which to avoid and which are recommended. Thanks. PS this is for a CentOS6 > server. The emulation implementations don't come into play if the alignment is correct from the start. The better implementations have significantly less patho...

Chris Murphy wrote: > On Mon, Jan 18, 2016, 4:39 AM Alessandro Baggi > <alessandro.baggi at gmail.com> > wrote: >> Il 18/01/2016 12:09, Chris Murphy ha scritto: >> > What is the result for each drive? >> > >> > smartctl -l scterc <dev> >> > >> SCT Error Recovery Control command not supported >> > The drive is

...old bug in os-prober, that was fixed >> years ago - has it slipped back in? I'm willing to guess that something now causes this RAID device to report a logical sector size of 4096 bytes, rather than 512 bytes as is ordinarily the case for real hard drives, most of which are now 512e AF drives. It is true that 4096 byte logical sectors aren't supported by bootloaders on BIOS systems; in theory it could be supported on UEFI systems. > There's still the question of why os-probe, which was supposedly fixed > almost five years ago, according to what I google, is back...

Hello, can someone give me a short summary on the status of support for sector sizes >512bytes in SYSLINUX? The installer obviously still doesn't support it, at least it complains about "unsupported sector size" when used on a 4k-sector disk. I read somewhere that this is only a problem of the installer, and that SYSLINUX itself would work if it got installed "by other

Hello, Situation: We are in a school class every student logs on with the same account. Until now we had Shares that were accessable for everybody and it was therefore possible to look into and edit/delete other's files. Plan: Create a share that can be clicked on which then asks for User/Pass and directly maps to the User's home Directory upon auth. User auth is done through LDAP

Hi, folks, Well, I get back from vacation, and three CentOS 7 boxes didn't come up this morning (my manager and the other admin did the update & reboot). On these three - but *not* another one or two, and I don't think those others are Dells, they're supermicro's - the 327 kernel fell into the rdosshell, I guess. I finally got one the three up by going back to the 228.14

We have a 3TB external USB drive that I am trying to attach to some CentOS5 servers. I have tried an older Dell PE1950 and a newer R310 but neither one seems to be able to read the drive. It works no problem on windows servers/workstations and I was able to format with NTFS. I know there are different methods for formatting large disks but this one doesn't even seem to show up as a /dev/

Hi list, I've a notebook with C7 (1511). This notebook has 2 disk (640 GB) and I've configured them with MD at level 1. Some days ago I've noticed some critical slowdown while opening applications. First of all I've disabled acpi on disks. I've checked disk for badblocks 4 consecutive times for disk sda and sdb and I've noticed a strange behaviour. On sdb there are