Re: What is better a 2nd drive for Raid 1 or a backup one?

2020-01-02 Thread John M. Harris Jr
On Thursday, January 2, 2020 9:47:44 AM MST Bruno Wolff III wrote: > On Tue, Dec 31, 2019 at 17:05:41 -0700, > > "John M. Harris Jr." wrote: > >If that's the case for LVM, then it seems that mdadm would be the easier > >and safer option. You simply create an array with a missing disk, copy the

Re: What is better a 2nd drive for Raid 1 or a backup one?

2020-01-02 Thread Bruno Wolff III
On Tue, Dec 31, 2019 at 17:05:41 -0700, "John M. Harris Jr." wrote: If that's the case for LVM, then it seems that mdadm would be the easier and safer option. You simply create an array with a missing disk, copy the data over, then add the existing disk to the array. If you copy block by

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-31 Thread John M. Harris Jr.
On Sunday, December 29, 2019 12:54:48 PM MST Chris Murphy wrote: > On Sat, Dec 28, 2019 at 2:01 PM Roberto Ragusa > wrote: > > > > > > On 12/26/19 10:54 PM, Chris Murphy wrote: > > > > > On Tue, Dec 24, 2019 at 2:56 PM Cameron Simpson wrote: > > > > > >> > > >> > > >> Oh yes, one more thing.

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-30 Thread John M. Harris Jr.
On Thursday, December 26, 2019 2:54:25 PM MST Chris Murphy wrote: > On Tue, Dec 24, 2019 at 2:56 PM Cameron Simpson wrote: > > > > > > > Oh yes, one more thing. If you do the RAID1 thing: either make a shiny > > new RAID1 and copy to it, or practice the transition with test drives. > > Do not

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-29 Thread Chris Murphy
On Sat, Dec 28, 2019 at 2:01 PM Roberto Ragusa wrote: > > On 12/26/19 10:54 PM, Chris Murphy wrote: > > On Tue, Dec 24, 2019 at 2:56 PM Cameron Simpson wrote: > >> > >> Oh yes, one more thing. If you do the RAID1 thing: either make a shiny > >> new RAID1 and copy to it, or practice the

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-28 Thread Roberto Ragusa
On 12/26/19 10:54 PM, Chris Murphy wrote: On Tue, Dec 24, 2019 at 2:56 PM Cameron Simpson wrote: Oh yes, one more thing. If you do the RAID1 thing: either make a shiny new RAID1 and copy to it, or practice the transition with test drives. Do not risk your high value data by trying to "in

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-27 Thread Cameron Simpson
On 28Dec2019 07:32, Ed Greshko wrote: On 2019-12-25 05:51, Cameron Simpson wrote: We keep 2 backups: an "online" one which is updated regularly and an "offline" one which lives in a drawer where accidents won't happen to it. What does "online" (in quotes) mean? Unmounted, but routinely

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-27 Thread Ed Greshko
On 2019-12-25 05:51, Cameron Simpson wrote: > We keep 2 backups: an "online" one which is updated regularly and an > "offline" one which lives in a drawer where accidents won't happen to it. What does "online" (in quotes) mean? I ask since, until now, I don't recall anyone mentioning the 2

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-27 Thread John M. Harris Jr.
On Thursday, December 26, 2019 11:32:53 AM MST Chris Murphy wrote: > On Tue, Dec 24, 2019 at 12:48 PM Javier Perez wrote: > > > > > > > Hi > > I have my /home partition on a 2TB HDD drive about half full. Should be > > doing regular backups but not in the habit. > > > > > > > What is better? > >

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-26 Thread Chris Murphy
On Tue, Dec 24, 2019 at 2:56 PM Cameron Simpson wrote: > > Oh yes, one more thing. If you do the RAID1 thing: either make a shiny > new RAID1 and copy to it, or practice the transition with test drives. > Do not risk your high value data by trying to "in place RAID1" it. I'm not sure if this is

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-26 Thread Chris Murphy
On Tue, Dec 24, 2019 at 12:48 PM Javier Perez wrote: > > Hi > I have my /home partition on a 2TB HDD drive about half full. Should be doing > regular backups but not in the habit. > > What is better? > A. Purchase a second 2TB to create a Raid1 mirror or > B. Purchase a second 4TB drive for

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-25 Thread Patrick O'Callaghan
On Wed, 2019-12-25 at 13:29 +1100, Cameron Simpson wrote: > On 25Dec2019 00:22, Patrick O'Callaghan wrote: > > On Wed, 2019-12-25 at 08:51 +1100, Cameron Simpson wrote: > > > Histbackup is here: > > > > > > https://bitbucket.org/cameron_simpson/css/src/tip/bin/histbackup > > > > > > There are

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-25 Thread Sam Varshavchik
Javier Perez writes: Hi I have my /home partition on a 2TB HDD drive about half full. Should be doing regular backups but not in the habit. What is better? A. Purchase a second 2TB to create a Raid1 mirror or B. Purchase a second 4TB drive for backup purposes. Since you already have an

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-24 Thread Cameron Simpson
On 25Dec2019 00:22, Patrick O'Callaghan wrote: On Wed, 2019-12-25 at 08:51 +1100, Cameron Simpson wrote: Histbackup is here: https://bitbucket.org/cameron_simpson/css/src/tip/bin/histbackup There are plenty of other similar tools. I use rsnapshot, which seems quite similar. Any thoughts

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-24 Thread Tim via users
On Wed, 2019-12-25 at 08:51 +1100, Cameron Simpson wrote: > if you have multiple external drives (eg multiple backup drives > for space reasons, or both the 1 and 2 copies plugged in at once) I > recommend doing the backups in series, not in parallel; I've a little > 4 port USB4 hub and have had

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-24 Thread Patrick O'Callaghan
On Wed, 2019-12-25 at 08:51 +1100, Cameron Simpson wrote: > Histbackup is here: > > https://bitbucket.org/cameron_simpson/css/src/tip/bin/histbackup > > There are plenty of other similar tools. I use rsnapshot, which seems quite similar. Any thoughts on pros/cons versus histbackup? poc

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-24 Thread Javier Perez
Thanks ! On Tue, Dec 24, 2019, 16:56 Cameron Simpson wrote: > Oh yes, one more thing. If you do the RAID1 thing: either make a shiny > new RAID1 and copy to it, or practice the transition with test drives. > Do not risk your high value data by trying to "in place RAID1" it. > > Cheers, >

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-24 Thread Cameron Simpson
Oh yes, one more thing. If you do the RAID1 thing: either make a shiny new RAID1 and copy to it, or practice the transition with test drives. Do not risk your high value data by trying to "in place RAID1" it. Cheers, Cameron Simpson ___ users

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-24 Thread Cameron Simpson
On 24Dec2019 14:47, Javier Perez wrote: I have my /home partition on a 2TB HDD drive about half full. Should be doing regular backups but not in the habit. What is better? A. Purchase a second 2TB to create a Raid1 mirror or B. Purchase a second 4TB drive for backup purposes. If case B,

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-24 Thread Javier Perez
On Tue, Dec 24, 2019, 15:29 Patrick O'Callaghan wrote: > On Tue, 2019-12-24 at 14:47 -0500, Javier Perez wrote: > > Hi > > I have my /home partition on a 2TB HDD drive about half full. Should be > > doing regular backups but not in the habit. > > > > What is better? > > A. Purchase a second 2TB

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-24 Thread Gordon Messmer
On 12/24/19 11:47 AM, Javier Perez wrote: I have my /home partition on a 2TB HDD drive about half full. Should be doing regular backups but not in the habit. What is better? A. Purchase a second 2TB to create a Raid1 mirror or B. Purchase a second 4TB drive for backup purposes. That depends

Re: What is better a 2nd drive for Raid 1 or a backup one?

2019-12-24 Thread Patrick O'Callaghan
On Tue, 2019-12-24 at 14:47 -0500, Javier Perez wrote: > Hi > I have my /home partition on a 2TB HDD drive about half full. Should be > doing regular backups but not in the habit. > > What is better? > A. Purchase a second 2TB to create a Raid1 mirror or > B. Purchase a second 4TB drive for

What is better a 2nd drive for Raid 1 or a backup one?

2019-12-24 Thread Javier Perez
Hi I have my /home partition on a 2TB HDD drive about half full. Should be doing regular backups but not in the habit. What is better? A. Purchase a second 2TB to create a Raid1 mirror or B. Purchase a second 4TB drive for backup purposes. If case B, should I get a USB3.0 adapter or similar so