Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-16 Thread Frank Steinmetzger
Am Dienstag, 16. Februar 2010 schrieb Alex Schuster: > No need for either, just look up the drive on Samsung's homepage [*]. It's > 512 bytes/sector, you should be fine. Gee thanks. Though that still keeps me baffled about my results, I can start looking for other reasons for it. :) Consider the

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-15 Thread Alex Schuster
Frank Steinmetzger writes: > Am Montag, 15. Februar 2010 schrieb Willie Wong: > > Instead of guessing using this rather imprecise metric, why not just > > look up the serial number of your drive and see what the physical > > sector size is? > > Well, at differences of 50%, precision is of no rel

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-15 Thread Frank Steinmetzger
Am Montag, 15. Februar 2010 schrieb Willie Wong: > On Mon, Feb 15, 2010 at 01:48:01AM +0100, Frank Steinmetzger wrote: > > Sorry if I reheat a topic that some already consider closed. I used the > > weekend to experiment on that stuff and need to report my results. > > Because they startle me a li

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-14 Thread Mark Knecht
2010/2/14 Willie Wong : > On Mon, Feb 15, 2010 at 01:48:01AM +0100, Frank Steinmetzger wrote: >> >> action         SS (1st)   SS (2nd)   SS+2       SS+4       SS+6       SS+8 >> -+--+--+--+--+--+-- >> untar portage  3m12.517   2m55.916  

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-14 Thread Willie Wong
On Mon, Feb 15, 2010 at 01:48:01AM +0100, Frank Steinmetzger wrote: > Sorry if I reheat a topic that some already consider closed. I used the > weekend to experiment on that stuff and need to report my results. Because > they startle me a little. > > I first tried different start sectors around

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-14 Thread Frank Steinmetzger
Am Sonntag, 7. Februar 2010 schrieb Mark Knecht: > Hi Willie, >OK - it turns out if I start fdisk using the -u option it show me > sector numbers. Looking at the original partition put on just using > default values it had the starting sector was 63 - probably about the > worst value it could

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-12 Thread Mark Knecht
On Fri, Feb 12, 2010 at 1:06 AM, Mick wrote: > On Tuesday 09 February 2010 16:31:15 Mark Knecht wrote: >> On Mon, Feb 8, 2010 at 4:37 PM, Mark Knecht wrote: >> >> >> > There's a few small downsides I've run into with all of this so far: >> > >> > 1) Since we don't use sector 63 it seems that fdi

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-12 Thread Mick
On Tuesday 09 February 2010 16:31:15 Mark Knecht wrote: > On Mon, Feb 8, 2010 at 4:37 PM, Mark Knecht wrote: > > > > There's a few small downsides I've run into with all of this so far: > > > > 1) Since we don't use sector 63 it seems that fdisk will still tell > > you that you can use 63 until

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread Stroller
On 10 Feb 2010, at 17:26, J. Roeleveld wrote: ... The mainboard I use (ASUS M3N-WS) has a working hotswap support (Yes, I tested this) using hotswap drive bays. Take a disk out, Linux actually sees it being removed prior to writing to it and when I stick it back in, it gets a new device assigned

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread J. Roeleveld
On Wednesday 10 February 2010 17:37:47 Stroller wrote: > On 10 Feb 2010, at 11:14, J. Roeleveld wrote: > > On Wednesday 10 February 2010 02:28:59 Stroller wrote: > >> On 9 Feb 2010, at 19:37, J. Roeleveld wrote: > >>> ... > >>> Don't get me started on those ;) > >>> The reason I use Linux Software

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread Stroller
On 10 Feb 2010, at 11:14, J. Roeleveld wrote: On Wednesday 10 February 2010 02:28:59 Stroller wrote: On 9 Feb 2010, at 19:37, J. Roeleveld wrote: ... Don't get me started on those ;) The reason I use Linux Software Raid is because: 1) I can't afford hardware raid adapters 2) It's generally fa

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread Volker Armin Hemmann
On Mittwoch 10 Februar 2010, J. Roeleveld wrote: > On Wednesday 10 February 2010 12:03:51 Volker Armin Hemmann wrote: > > On Mittwoch 10 Februar 2010, J. Roeleveld wrote: > > > As for recovery, I always use "sysrescuecd" (http://www.sysresccd.org) > > > and this has Raid and LVM support in it. (Sam

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread J. Roeleveld
On Wednesday 10 February 2010 12:03:51 Volker Armin Hemmann wrote: > On Mittwoch 10 Februar 2010, J. Roeleveld wrote: > > As for recovery, I always use "sysrescuecd" (http://www.sysresccd.org) > > and this has Raid and LVM support in it. (Same with the Gentoo-livecds) > > sysrescuecd failed me har

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread J. Roeleveld
On Wednesday 10 February 2010 02:28:59 Stroller wrote: > On 9 Feb 2010, at 19:37, J. Roeleveld wrote: > > ... > > Don't get me started on those ;) > > The reason I use Linux Software Raid is because: > > 1) I can't afford hardware raid adapters > > 2) It's generally faster then hardware fakeraid >

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread Volker Armin Hemmann
On Mittwoch 10 Februar 2010, J. Roeleveld wrote: > As for recovery, I always use "sysrescuecd" (http://www.sysresccd.org) and > this has Raid and LVM support in it. (Same with the Gentoo-livecds) sysrescuecd failed me hard two nights ago. 64bit kernel paniced with stack corruptions, 32bit kernel

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread J. Roeleveld
On Wednesday 10 February 2010 08:08:44 Alan McKinnon wrote: > On Wednesday 10 February 2010 01:22:31 Iain Buchanan wrote: > > On Tue, 2010-02-09 at 08:47 +0100, J. Roeleveld wrote: > > > I now only need to figure out the best way to configure LVM over this > > > to get the best performance from it.

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread J. Roeleveld
On Wednesday 10 February 2010 00:22:31 Iain Buchanan wrote: > On Tue, 2010-02-09 at 08:47 +0100, J. Roeleveld wrote: > > I now only need to figure out the best way to configure LVM over this to > > get the best performance from it. Does anyone know of a decent way of > > figuring this out? > > I go

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread Volker Armin Hemmann
On Mittwoch 10 Februar 2010, Iain Buchanan wrote: > On Wed, 2010-02-10 at 07:31 +0100, Volker Armin Hemmann wrote: > > On Mittwoch 10 Februar 2010, Iain Buchanan wrote: > > > so long as you didn't have any non-detectable disk errors before > > > removing the disk, or any drive failure while one of

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread Volker Armin Hemmann
On Mittwoch 10 Februar 2010, Iain Buchanan wrote: > On Wed, 2010-02-10 at 07:31 +0100, Volker Armin Hemmann wrote: > > On Mittwoch 10 Februar 2010, Iain Buchanan wrote: > > > so long as you didn't have any non-detectable disk errors before > > > removing the disk, or any drive failure while one of

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-10 Thread Iain Buchanan
On Wed, 2010-02-10 at 06:59 +, Neil Walker wrote: > Iain Buchanan wrote: > > I'm starting to stray OT here, but I'm considering a second-hand Adaptec > > 2420SA - this is real hardware raid right? > > > > It's a PCI-X card (not PCI-E). Are you sure that's right for your system? yes, I have

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Iain Buchanan
On Wed, 2010-02-10 at 07:31 +0100, Volker Armin Hemmann wrote: > On Mittwoch 10 Februar 2010, Iain Buchanan wrote: > > so long as you didn't have any non-detectable disk errors before > > removing the disk, or any drive failure while one of the drives were > > removed. And the deterioration in pe

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Alan McKinnon
On Wednesday 10 February 2010 01:22:31 Iain Buchanan wrote: > On Tue, 2010-02-09 at 08:47 +0100, J. Roeleveld wrote: > > I now only need to figure out the best way to configure LVM over this to > > get the best performance from it. Does anyone know of a decent way of > > figuring this out? > > I go

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Iain Buchanan
On Tue, 2010-02-09 at 17:27 -0800, Mark Knecht wrote: > On Tue, Feb 9, 2010 at 4:31 PM, Iain Buchanan wrote: > > On Tue, 2010-02-09 at 14:54 -0800, Mark Knecht wrote: > >> Frank, > >>As best I can tell so far none of the Linux tools will tell you > >> that the sectors are 4K. I had to go to t

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Neil Walker
Iain Buchanan wrote: > I'm starting to stray OT here, but I'm considering a second-hand Adaptec > 2420SA - this is real hardware raid right? > It's a PCI-X card (not PCI-E). Are you sure that's right for your system? > If I'm buying drives in the 1Tb size - does this 4k issue affect > hardware

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Neil Walker
Peter Humphrey wrote: > On Tuesday 09 February 2010 18:03:39 Neil Walker wrote: > > >> Be lucky, >> >> Neil >> > > How would I go about doing that? > Well, you need a rabbit's foot, a four leaf clover, a horseshoe (remember to keep the open end uppermost), a black cat, ;) Be

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Volker Armin Hemmann
On Mittwoch 10 Februar 2010, Iain Buchanan wrote: > On Tue, 2010-02-09 at 13:34 +, Neil Bothwick wrote: > > On Tue, 9 Feb 2010 12:46:40 +, Stroller wrote: > > > > With the RAID, you could fail one disk, repartition, re-add it, > > > > rinse and > > > > repeat. But that doesn't take care of

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Stroller
On 9 Feb 2010, at 19:37, J. Roeleveld wrote: ... Don't get me started on those ;) The reason I use Linux Software Raid is because: 1) I can't afford hardware raid adapters 2) It's generally faster then hardware fakeraid I'd rather have slow hardware RAID than fast software RAID. I'm not bein

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Mark Knecht
On Tue, Feb 9, 2010 at 4:31 PM, Iain Buchanan wrote: > On Tue, 2010-02-09 at 14:54 -0800, Mark Knecht wrote: >> On Tue, Feb 9, 2010 at 1:13 PM, Frank Steinmetzger wrote: > > >> > When I use parted on the drives, it says (both the old external and my 2 >> > months old internal): >> > Sector size (

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Stroller
On 9 Feb 2010, at 23:52, Iain Buchanan wrote: ... I'm starting to stray OT here, but I'm considering a second-hand Adaptec 2420SA - this is real hardware raid right? Looks like it. Looks pretty nice, too. The affordable PCI / PCI-X 3wares don't do RAID6 - you have to go PCIe for that, I

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Iain Buchanan
On Tue, 2010-02-09 at 14:54 -0800, Mark Knecht wrote: > On Tue, Feb 9, 2010 at 1:13 PM, Frank Steinmetzger wrote: > > When I use parted on the drives, it says (both the old external and my 2 > > months old internal): > > Sector size (logical/physical): 512B/512B > > So no speedup for me then. :-

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Peter Humphrey
On Tuesday 09 February 2010 18:03:39 Neil Walker wrote: > Be lucky, > > Neil How would I go about doing that? -- Rgds Peter.

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Iain Buchanan
On Tue, 2010-02-09 at 20:37 +0100, J. Roeleveld wrote: > Don't get me started on those ;) > The reason I use Linux Software Raid is because: > 1) I can't afford hardware raid adapters > 2) It's generally faster then hardware fakeraid I'm starting to stray OT here, but I'm considering a second-han

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Iain Buchanan
On Tue, 2010-02-09 at 13:34 +, Neil Bothwick wrote: > On Tue, 9 Feb 2010 12:46:40 +, Stroller wrote: > > > > With the RAID, you could fail one disk, repartition, re-add it, > > > rinse and > > > repeat. But that doesn't take care of the time issue. > > > > Aren't you thinking of LVM,

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Iain Buchanan
On Tue, 2010-02-09 at 08:47 +0100, J. Roeleveld wrote: > I now only need to figure out the best way to configure LVM over this to get > the best performance from it. Does anyone know of a decent way of figuring > this out? > I got 6 disks in Raid-5. why LVM? Planning on changing partition size

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Mark Knecht
On Tue, Feb 9, 2010 at 1:13 PM, Frank Steinmetzger wrote: > Am Dienstag, 9. Februar 2010 schrieb Frank Steinmetzger: > >> I have reset sdb7 to use boundaries divisible by 64. >> Old range            begin%64  size%64  New range            begin%64 >> size%64 813113973-976703804  0.8281    0.125  

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread J. Roeleveld
On Tuesday 09 February 2010 22:13:39 Frank Steinmetzger wrote: > When I use parted on the drives, it says (both the old external and my 2 > months old internal): > Sector size (logical/physical): 512B/512B > So no speedup for me then. :-/ > That doesn't mean a thing, I'm afraid. I have the 4KB d

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Frank Steinmetzger
Am Dienstag, 9. Februar 2010 schrieb Frank Steinmetzger: > I have reset sdb7 to use boundaries divisible by 64. > Old rangebegin%64 size%64 New rangebegin%64 > size%64 813113973-976703804 0.82810.125813113984-976703935 0 >0 > > And guess what - the spe

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Neil Bothwick
On Tue, 9 Feb 2010 17:17:48 +, Stroller wrote: > only applies in the specific case that Paul Hartman is using Linux > software RAID, not the general case of RAID in general. That's true, although in the Linux world I expect that the number of software RAID users far outnumbers the hardware

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread J. Roeleveld
On Tuesday 09 February 2010 19:03:39 Neil Walker wrote: > Hey guys, > > There seems to be a lot of confusion over this RAID thing. > > Hardware RAID does not use partitions. The entire drive is used (or, > actually, the amount defined in setting up the array) and all I/O is > handled by the BIOS

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread J. Roeleveld
On Tuesday 09 February 2010 19:25:00 Mark Knecht wrote: > On Tue, Feb 9, 2010 at 9:38 AM, Stroller > wrote: > > > IMO this is a fdisk "bug". A feature should be added so that it tries to > > align optimally in most circumstances. RAID controllers should not be > > trying to do anything clever t

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Mark Knecht
On Tue, Feb 9, 2010 at 9:38 AM, Stroller wrote: > IMO this is a fdisk "bug". A feature should be added so that it tries to > align optimally in most circumstances. RAID controllers should not be trying > to do anything clever to accommodate potential misalignment unless it is > really cheap to do

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Mark Knecht
On Tue, Feb 9, 2010 at 9:09 AM, Frank Steinmetzger wrote: > So sdb7 now ends at sector 976703935. Interestingly, I couldn’t use the > immediate next sector for sdb8: > start for sdb8   response by fdisk > 976703936        sector already allocated > 976703944        Value out of range. First secto

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Neil Walker
Hey guys, There seems to be a lot of confusion over this RAID thing. Hardware RAID does not use partitions. The entire drive is used (or, actually, the amount defined in setting up the array) and all I/O is handled by the BIOS on the RAID controller. The array appears as a single drive to the OS

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Stroller
On 9 Feb 2010, at 15:27, J. Roeleveld wrote: On Tuesday 09 February 2010 16:11:14 Stroller wrote: On 9 Feb 2010, at 13:57, J. Roeleveld wrote: ... With Raid (NOT striping) you can remove one disk, leaving the Raid- array in a reduced state. Then repartition the disk you removed, repartition a

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Paul Hartman
On Mon, Feb 8, 2010 at 6:27 PM, Neil Bothwick wrote: > On Mon, 8 Feb 2010 14:34:01 -0600, Paul Hartman wrote: > >> Thanks for the info everyone, but do you understand the agony I am now >> suffering at the fact that all disk in my system (including all parts >> of my RAID5) are starting on sector

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Stroller
On 9 Feb 2010, at 15:43, Neil Bothwick wrote: On Tue, 9 Feb 2010 15:11:14 +, Stroller wrote: You cannot remove one disk from the array and repartition it, because the partition is across the array, not the disk. The single disk, removed from a RAID 5 (specified by Paul Hartman) array does

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Frank Steinmetzger
Am Dienstag, 9. Februar 2010 schrieb Frank Steinmetzger: > > 4) Everything I've done so far leave me with messages about partition > > 1 not ending on a cylinder boundary. Googling on that one says don't > > worry about it. I don't know... Well since only the start of a partition determines its a

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Mark Knecht
On Mon, Feb 8, 2010 at 4:37 PM, Mark Knecht wrote: > > There's a few small downsides I've run into with all of this so far: > > 1) Since we don't use sector 63 it seems that fdisk will still tell > you that you can use 63 until you use up all your primary partitions. > It used to be easier to put

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Neil Bothwick
On Tue, 9 Feb 2010 15:11:14 +, Stroller wrote: > You cannot remove one disk from the array and repartition it, because > the partition is across the array, not the disk. The single disk, > removed from a RAID 5 (specified by Paul Hartman) array does not > contain any partitions, just one

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread J. Roeleveld
On Tuesday 09 February 2010 16:11:14 Stroller wrote: > On 9 Feb 2010, at 13:57, J. Roeleveld wrote: > > ... > > With Raid (NOT striping) you can remove one disk, leaving the Raid- > > array in a > > reduced state. Then repartition the disk you removed, repartition > > and then re- > > add the disk

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Stroller
On 9 Feb 2010, at 13:57, J. Roeleveld wrote: ... With Raid (NOT striping) you can remove one disk, leaving the Raid- array in a reduced state. Then repartition the disk you removed, repartition and then re- add the disk to the array. Exactly. Except the partitions extend, in the same posit

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread J. Roeleveld
On Tuesday 09 February 2010 13:46:40 Stroller wrote: > On 9 Feb 2010, at 00:27, Neil Bothwick wrote: > > On Mon, 8 Feb 2010 14:34:01 -0600, Paul Hartman wrote: > >> Thanks for the info everyone, but do you understand the agony I am > >> now > >> suffering at the fact that all disk in my system (inc

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Volker Armin Hemmann
On Dienstag 09 Februar 2010, Stroller wrote: > On 9 Feb 2010, at 00:27, Neil Bothwick wrote: > > On Mon, 8 Feb 2010 14:34:01 -0600, Paul Hartman wrote: > >> Thanks for the info everyone, but do you understand the agony I am > >> now > >> suffering at the fact that all disk in my system (including a

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Neil Bothwick
On Tue, 9 Feb 2010 12:46:40 +, Stroller wrote: > > With the RAID, you could fail one disk, repartition, re-add it, > > rinse and > > repeat. But that doesn't take care of the time issue. > > Aren't you thinking of LVM, or something? No. The very nature of RAID is redundancy, so you could

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread Stroller
On 9 Feb 2010, at 00:27, Neil Bothwick wrote: On Mon, 8 Feb 2010 14:34:01 -0600, Paul Hartman wrote: Thanks for the info everyone, but do you understand the agony I am now suffering at the fact that all disk in my system (including all parts of my RAID5) are starting on sector 63 and I don'

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-09 Thread J. Roeleveld
On Monday 08 February 2010 21:34:01 Paul Hartman wrote: > On Mon, Feb 8, 2010 at 12:52 PM, Valmor de Almeida wrote: > > Mark Knecht wrote: > > [snip] > > > >>This has been helpful for me. I'm glad Valmor is getting better > >> results also. > > > > [snip] > > > > These 4k-sector drives can be

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-08 Thread Frank Steinmetzger
Am Dienstag, 9. Februar 2010 schrieb Mark Knecht: > 4) Everything I've done so far leave me with messages about partition > 1 not ending on a cylinder boundary. Googling on that one says don't > worry about it. I don't know... Would that be when there’s a + sign behind the end sector? I believe t

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-08 Thread Willie Wong
On Tue, Feb 09, 2010 at 01:05:11AM +0100, Frank Steinmetzger wrote: > Am Sonntag, 7. Februar 2010 schrieb Mark Knecht: > > > Hi Willie, > >OK - it turns out if I start fdisk using the -u option it show me > > sector numbers. Looking at the original partition put on just using > > default value

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-08 Thread Stroller
On 9 Feb 2010, at 00:05, Frank Steinmetzger wrote: ... - probably about the worst value it could be. Hm what about those first 62 sectors? If I'm understanding correctly, then the drive will *always* have to start at the 63rd sector, then swing back round and start reading a 1st sec

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-08 Thread Mark Knecht
On Mon, Feb 8, 2010 at 4:05 PM, Frank Steinmetzger wrote: > Am Sonntag, 7. Februar 2010 schrieb Mark Knecht: > >> Hi Willie, >>    OK - it turns out if I start fdisk using the -u option it show me >> sector numbers. Looking at the original partition put on just using >> default values it had the s

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-08 Thread Neil Bothwick
On Mon, 8 Feb 2010 14:34:01 -0600, Paul Hartman wrote: > Thanks for the info everyone, but do you understand the agony I am now > suffering at the fact that all disk in my system (including all parts > of my RAID5) are starting on sector 63 and I don't have sufficient > free space (or free time) t

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-08 Thread Frank Steinmetzger
Am Sonntag, 7. Februar 2010 schrieb Mark Knecht: > Hi Willie, >OK - it turns out if I start fdisk using the -u option it show me > sector numbers. Looking at the original partition put on just using > default values it had the starting sector was 63 Same here. > - probably about the worst va

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-08 Thread Paul Hartman
On Mon, Feb 8, 2010 at 12:52 PM, Valmor de Almeida wrote: > Mark Knecht wrote: > [snip] >> >>This has been helpful for me. I'm glad Valmor is getting better >> results also. > [snip] > > These 4k-sector drives can be problematic when upgrading older > computers. For instance, my laptop BIOS wo

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-08 Thread Stroller
On 8 Feb 2010, at 05:25, Valmor de Almeida wrote: Mark Knecht wrote: On Sun, Feb 7, 2010 at 11:39 AM, Willie Wong > wrote: [snip] OK - it turns out if I start fdisk using the -u option it show me sector numbers. Looking at the original partition put on just using default values it had the s

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-08 Thread Valmor de Almeida
Mark Knecht wrote: [snip] > >This has been helpful for me. I'm glad Valmor is getting better > results also. [snip] These 4k-sector drives can be problematic when upgrading older computers. For instance, my laptop BIOS would not boot from the toshiba drive I mentioned earlier. However when us

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-08 Thread Mark Knecht
On Sun, Feb 7, 2010 at 6:08 PM, Willie Wong wrote: > On Sun, Feb 07, 2010 at 01:42:18PM -0800, Mark Knecht wrote: >>    OK - it turns out if I start fdisk using the -u option it show me >> sector numbers. Looking at the original partition put on just using >> default values it had the starting sec

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Valmor de Almeida
Mark Knecht wrote: > On Sun, Feb 7, 2010 at 11:39 AM, Willie Wong wrote: [snip] >OK - it turns out if I start fdisk using the -u option it show me > sector numbers. Looking at the original partition put on just using > default values it had the starting sector was 63 - probably about the I to

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Willie Wong
On Sun, Feb 07, 2010 at 01:42:18PM -0800, Mark Knecht wrote: >OK - it turns out if I start fdisk using the -u option it show me > sector numbers. Looking at the original partition put on just using > default values it had the starting sector was 63 - probably about the > worst value it could be

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Kyle Bader
>>> 4KB physical sectors: KNOW WHAT YOU'RE DOING! Good article by Theodore T'so, might be helpful: http://thunk.org/tytso/blog/2009/02/20/aligning-filesystems-to-an-ssds-erase-block-size/ -- Kyle

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Mark Knecht
On Sun, Feb 7, 2010 at 11:39 AM, Willie Wong wrote: > On Sun, Feb 07, 2010 at 08:27:46AM -0800, Mark Knecht wrote: >> >> 4KB physical sectors: KNOW WHAT YOU'RE DOING! >> >> Pros: Quiet, cool-running, big cache >> >> Cons: The 4KB physical sectors are a problem waiting to happen. If you >> misalig

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Mark Knecht
On Sun, Feb 7, 2010 at 11:39 AM, Willie Wong wrote: > On Sun, Feb 07, 2010 at 08:27:46AM -0800, Mark Knecht wrote: >> >> 4KB physical sectors: KNOW WHAT YOU'RE DOING! >> >> Pros: Quiet, cool-running, big cache >> >> Cons: The 4KB physical sectors are a problem waiting to happen. If you >> misalig

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Willie Wong
On Sun, Feb 07, 2010 at 08:27:46AM -0800, Mark Knecht wrote: > > 4KB physical sectors: KNOW WHAT YOU'RE DOING! > > Pros: Quiet, cool-running, big cache > > Cons: The 4KB physical sectors are a problem waiting to happen. If you > misalign your partitions, disk performance can suffer. I ran > benc

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Mark Knecht
On Sun, Feb 7, 2010 at 10:19 AM, Volker Armin Hemmann wrote: > On Sonntag 07 Februar 2010, Alexander wrote: >> On Sunday 07 February 2010 19:27:46 Mark Knecht wrote: >> >    Every time there is an apparent delay I just see the hard drive >> > >> > light turned on solid. That said as far as I know

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Volker Armin Hemmann
On Sonntag 07 Februar 2010, Mark Knecht wrote: > On Sun, Feb 7, 2010 at 9:30 AM, Alexander wrote: > > On Sunday 07 February 2010 19:27:46 Mark Knecht wrote: > >>Every time there is an apparent delay I just see the hard drive > >> light turned on solid. That said as far as I know if I wait for

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Mark Knecht
On Sun, Feb 7, 2010 at 9:30 AM, Alexander wrote: > On Sunday 07 February 2010 19:27:46 Mark Knecht wrote: > >>    Every time there is an apparent delay I just see the hard drive >> light turned on solid. That said as far as I know if I wait for things >> to complete the data is there but I haven't

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Volker Armin Hemmann
On Sonntag 07 Februar 2010, Alexander wrote: > On Sunday 07 February 2010 19:27:46 Mark Knecht wrote: > >Every time there is an apparent delay I just see the hard drive > > > > light turned on solid. That said as far as I know if I wait for things > > to complete the data is there but I haven'

Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Alexander
On Sunday 07 February 2010 19:27:46 Mark Knecht wrote: >Every time there is an apparent delay I just see the hard drive > light turned on solid. That said as far as I know if I wait for things > to complete the data is there but I haven't tested it extensively. > >Is this a bad drive or a

[gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

2010-02-07 Thread Mark Knecht
Hi, I got a WD 1T drive to use in a new machine for my dad. I didn't pay a huge amount of attention to the technical details when I purchased it other than it was SATA2, big, and the price was good. Here's the NewEgg link: http://www.newegg.com/Product/Product.aspx?Item=N82E16822136490 I in