Re: MDADM RAID1 of external USB 3.0 Drives

2014-10-08 Thread lee
Linux-Fan writes: > On 10/07/2014 11:41 PM, lee wrote: > > Transferring data via network is also my favorite means of > "transportation". On the other hand, my connection has an upload speed > of about 70 KiB/sec and is therefore not suited for transferring medium > amounts of data like 150 MiB (

Re: MDADM RAID1 of external USB 3.0 Drives

2014-10-08 Thread Linux-Fan
On 10/07/2014 11:41 PM, lee wrote: > Linux-Fan writes: >> On 09/30/2014 01:40 AM, lee wrote: [...] >>> Last time I looked into buying an USB stick, I found out that I'd be >>> better off buying an USB disk because the sticks were so expensive and >>> their capacity relatively low, so I bought an

Re: MDADM RAID1 of external USB 3.0 Drives

2014-10-07 Thread lee
Linux-Fan writes: > On 09/30/2014 01:40 AM, lee wrote: > > [...] > >> I think I figured it out: The USB stuff was actually going to sleep and >> remained unresponsive once it fell asleep, until a reboot. I used >> powertop to disable the power management for USB and didn't have any >> further is

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-30 Thread Linux-Fan
On 09/30/2014 01:40 AM, lee wrote: [...] > I think I figured it out: The USB stuff was actually going to sleep and > remained unresponsive once it fell asleep, until a reboot. I used > powertop to disable the power management for USB and didn't have any > further issues since. > > It might be w

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-29 Thread lee
Linux-Fan writes: >> On 09/29/2014 12:56 AM, lee wrote: > > I cannot tell much about the reliability of SMART data in general but > should I see a lot of "bad" values suddenly appearing I would > immediately perform some additional backups and check the data more > closely, listen to the drive so

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-28 Thread Linux-Fan
On 09/29/2014 12:56 AM, lee wrote: > Linux-Fan writes: >> On 09/27/2014 09:52 PM, lee wrote: >>> Linux-Fan writes: On 09/22/2014 03:23 AM, lee wrote: > Linux-Fan writes: I always at least try to read/interpret the SMART data. I consider it valuable information, although it is

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-28 Thread lee
Linux-Fan writes: > On 09/27/2014 09:52 PM, lee wrote: >> Linux-Fan writes: >>> On 09/22/2014 03:23 AM, lee wrote: Linux-Fan writes: > On 09/21/2014 08:41 PM, lee wrote: >> Linux-Fan writes: On 09/20/2014 04:55 PM, lee wrote: I've seen the smart info show incred

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-27 Thread Linux-Fan
On 09/27/2014 09:52 PM, lee wrote: > Linux-Fan writes: >> On 09/22/2014 03:23 AM, lee wrote: >>> Linux-Fan writes: On 09/21/2014 08:41 PM, lee wrote: > Linux-Fan writes: >>> On 09/20/2014 04:55 PM, lee wrote: >>> >>> I've seen the smart info show incredible numbers for the hours and

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-27 Thread lee
Linux-Fan writes: > On 09/22/2014 03:23 AM, lee wrote: >> Linux-Fan writes: >>> On 09/21/2014 08:41 PM, lee wrote: Linux-Fan writes: >> On 09/20/2014 04:55 PM, lee wrote: >> >> I've seen the smart info show incredible numbers for the hours and for >> the temperature. Hence I can only

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-22 Thread Linux-Fan
On 09/22/2014 03:23 AM, lee wrote: > Linux-Fan writes: >> On 09/21/2014 08:41 PM, lee wrote: >>> Linux-Fan writes: > On 09/20/2014 04:55 PM, lee wrote: > Other than that, in my experience Seagate disks my have an unusually > high failure rate. Mine all work here. SMART repor

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-21 Thread lee
Linux-Fan writes: > On 09/21/2014 08:41 PM, lee wrote: >> Linux-Fan writes: On 09/20/2014 04:55 PM, lee wrote: Other than that, in my experience Seagate disks my have an unusually high failure rate. >>> >>> Mine all work here. SMART reports >> >> They'll work until they fail. I

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-21 Thread Linux-Fan
On 09/21/2014 08:41 PM, lee wrote: > Linux-Fan writes: >>> On 09/20/2014 04:55 PM, lee wrote: >>> Other than that, in my experience Seagate disks my have an unusually >>> high failure rate. >> >> Mine all work here. SMART reports > > They'll work until they fail. I don't believe in the smart-inf

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-21 Thread lee
Linux-Fan writes: >> On 09/20/2014 04:55 PM, lee wrote: > >> Other than that, in my experience Seagate disks my have an unusually >> high failure rate. > > Mine all work here. SMART reports They'll work until they fail. I don't believe in the smart-info. > The "unreliability" has just happened

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-21 Thread lee
"Andrew M.A. Cater" writes: > On Sun, Sep 21, 2014 at 03:51:54AM +0200, lee wrote: >> Andrew McGlashan writes: >> >> > Whilst it is usually quite easy to find older server class hardware at >> > bargain prices (compared to new), it is often the case that older >> > hardware is slower and much l

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-21 Thread Linux-Fan
On 09/20/2014 04:55 PM, lee wrote: > Linux-Fan writes: >> On 09/14/2014 04:33 PM, lee wrote: >>> Linux-Fan writes: or even buy some additional drives (I know that it is often said that "today drives are cheap" but for me being comparatively new to computing, 60€ are still much for

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-21 Thread Andrew M.A. Cater
On Sun, Sep 21, 2014 at 03:51:54AM +0200, lee wrote: > Andrew McGlashan writes: > > > Whilst it is usually quite easy to find older server class hardware at > > bargain prices (compared to new), it is often the case that older > > hardware is slower and much less power efficient to newer hardware

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-20 Thread lee
Andrew McGlashan writes: > Whilst it is usually quite easy to find older server class hardware at > bargain prices (compared to new), it is often the case that older > hardware is slower and much less power efficient to newer hardware and > the pricing on lots of new gear has collapsed enough to

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-20 Thread lee
Cindy-Sue Causey writes: > After going through this several times lately, I think of it this way: > $25 for a cheap part when better quality is $50. That cheap part WILL > break and usually very soon. $25 DOWN THE DRAIN, boom, just like that > when that same $25 could have gone towards that $50 p

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-20 Thread Andrew McGlashan
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 21/09/2014 4:00 AM, Andrew McGlashan wrote: > First off, I used to use this script [1], with an entry > in /etc/rc.local to kick it off on boot. My goal was to start > the RAID1 array only if 2 members could be found (minimum), I > added a 3rd me

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-20 Thread Andrew McGlashan
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi, I'm going to address a number of things here First off, I used to use this script [1], with an entry in /etc/rc.local to kick it off on boot. My goal was to start the RAID1 array only if 2 members could be found (minimum), I added a 3rd m

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-20 Thread Cindy-Sue Causey
On 9/20/14, lee wrote: > > What's the point of creating and attaching to your computer an > unreliable storage system which continues to give you trouble because > it's unreliable? *100% ditto* This is coming from someone operating at an extremely low income level: Buy the more expensive shtuff

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-20 Thread lee
Linux-Fan writes: > On 09/14/2014 04:33 PM, lee wrote: >> Linux-Fan writes: >> On 09/14/2014 12:38 PM, Andrew M.A. Cater wrote: >>> >>> or even buy some additional drives (I know that it is often said that >>> "today drives are cheap" but for me being comparatively new to >>> computing, 60

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-20 Thread lee
Linux-Fan writes: > On 09/14/2014 04:35 PM, lee wrote: >> Linux-Fan writes: >> >>> Also, the reliability of the external storage is required to be >>> perfect >> >> Then forget USB disks. Get an HP Microserver and reliable disks. > > Sorry, forgot to insert a not :). > It should read "the rel

Fwd: Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread Linux-Fan
Sorry, this should have been sent to the list in the first place. Original Message Subject: Re: MDADM RAID1 of external USB 3.0 Drives Date: Sun, 14 Sep 2014 18:12:41 +0200 From: Linux-Fan To: Reco On 09/14/2014 06:06 PM, Reco wrote: > Hi. > > On Sun, 14 Sep 2014

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread Linux-Fan
On 09/14/2014 04:33 PM, lee wrote: > Linux-Fan writes: > >>> On 09/14/2014 12:38 PM, Andrew M.A. Cater wrote: >> >> or even buy some additional drives (I know that it is often said that >> "today drives are cheap" but for me being comparatively new to >> computing, 60€ are still much for a HDD) >

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread Reco
Hi. On Sun, 14 Sep 2014 17:55:46 +0200 Linux-Fan wrote: > Concerning editing the initscript: I am now going to do that but I guess > it is going to produce trouble when upgrading to Jessie. No it won't. Installing a new version of mdadm package will produce a different version of /etc/init.d/m

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread Linux-Fan
On 09/14/2014 04:35 PM, lee wrote: > Linux-Fan writes: > >> Also, the reliability of the external storage is required to be >> perfect > > Then forget USB disks. Get an HP Microserver and reliable disks. Sorry, forgot to insert a not :). It should read "the reliability of the external storage

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread Dan Ritter
On Sun, Sep 14, 2014 at 02:30:34PM +0200, Linux-Fan wrote: > On 09/14/2014 01:42 PM, Linux-Fan wrote: > > On 09/14/2014 02:06 AM, Dan Ritter wrote: > > [...] > > >> In the meantime, you can: > >> - add a bitmap file to the RAID, which will speed up rebuilds. > >> - use the --no-degraded flag, to

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread lee
Linux-Fan writes: >> On 09/14/2014 12:38 PM, Andrew M.A. Cater wrote: > > or even buy some additional drives (I know that it is often said that > "today drives are cheap" but for me being comparatively new to > computing, 60€ are still much for a HDD) Where do you get good 2TB+ drives for only E

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread lee
Linux-Fan writes: > Also, the reliability of the external storage is required to be > perfect Then forget USB disks. Get an HP Microserver and reliable disks. -- Knowledge is volatile and fluid. Software is power. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a s

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread Linux-Fan
On 09/14/2014 01:42 PM, Linux-Fan wrote: > On 09/14/2014 02:06 AM, Dan Ritter wrote: [...] >> In the meantime, you can: >> - add a bitmap file to the RAID, which will speed up rebuilds. >> - use the --no-degraded flag, to prevent assembly of a RAID that >> is lacking a disk. > > Thank you very

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread Linux-Fan
On 09/14/2014 12:38 PM, Andrew M.A. Cater wrote: > On Sat, Sep 13, 2014 at 08:06:59PM -0400, Dan Ritter wrote: [...] >> It's almost certainly a real problem, and in my experience it is >> not the disk itself which is bad, but something in the path (the >> USB port, the USB cable, the USB-SATA int

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread Linux-Fan
On 09/14/2014 02:06 AM, Dan Ritter wrote: > On Thu, Sep 11, 2014 at 06:17:00PM +0200, Linux-Fan wrote: [...] >> Is there any means to configure MDADM (or such) to make sure that all >> devices are recognized before attempting to start the array so that I >> could manually reconnect the missing di

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-14 Thread Andrew M.A. Cater
On Sat, Sep 13, 2014 at 08:06:59PM -0400, Dan Ritter wrote: > On Thu, Sep 11, 2014 at 06:17:00PM +0200, Linux-Fan wrote: > > some time ago, I bought two external Seagate 2 TB USB 3.0 HDDs in order > > to expand my local storage (all internal slots are already in use). > > Having created a RAID1 wit

Re: MDADM RAID1 of external USB 3.0 Drives

2014-09-13 Thread Dan Ritter
On Thu, Sep 11, 2014 at 06:17:00PM +0200, Linux-Fan wrote: > some time ago, I bought two external Seagate 2 TB USB 3.0 HDDs in order > to expand my local storage (all internal slots are already in use). > Having created a RAID1 with MDADM just as normal, it all seemed to work, > until at one system

MDADM RAID1 of external USB 3.0 Drives

2014-09-11 Thread Linux-Fan
Dear list members, some time ago, I bought two external Seagate 2 TB USB 3.0 HDDs in order to expand my local storage (all internal slots are already in use). Having created a RAID1 with MDADM just as normal, it all seemed to work, until at one system startup MDADM told me via local mail that the