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1
Installation and Upgrades / Re: SOFTWARE RAID: lot of troubles !!!
« on: October 07, 2011, 02:42:22 pm »I feel that flashbios is using mirroring as backup strategy
Although this approach is often used on larger systems, it also comes with scripts to ensure that all write operations are frozen at the time you synchronize disks then stop mirroring before you release writes. This is, f.i. required to ensure consistency among various files or DB.
Is it still fitting with SMB strategy
Mirroring (or almost any RAID of your choice) for data protection is OK.
RAID 1 as back-up strategy is a very different animaland if this is required in order to manage sensitive data, I would rather go for dedicated storage OS (like FreeNAS) and mount volumes exposed via Samba. Well... my own personal choice only, of course
Thanks for the info ;-)
All the data-disks contains 1 Linux RAID-partition, nothing else. I can stop the server, disconnect a datadisk and reboot the system again.
It doesn't matter which datadisk, as long there is still 1 left. Normal startup, all data is direct available. I can change a damaged disk, or return a disk (used as backup_ in the server
and add it again to the mirror. With centos, this all is working very easy. Ofcourse, a mirror is not a backup system: I store disks on a safe place with all the data (like a snapshot), and I allways keep a couple of disks in this way.. (different backup-sets). Like what we do with tape-backups, but it's too much data for a tape ;-) (or I must by a reall expensive system).
Also I make backups to and another live backup-system, I lost a lot of data long time agoo, don't want to have that again ever...
Maybe this all is not the best way, but it works for me now for a few years without problems ;-)
Anyway, the same thing I want to do with ubuntu (zentyall 64bits): after heavy testing, it failed more then ones..
With centos, rebuilding etc. is just a few clicks at the WEBMIN RAID option, system starts allways. With ubuntu: It doesn't, too much hazzle to get it running again..
Possible my poor experience and knowledge of Ubuntu, I will try it again later if somebody can tell me what's wrong and how to fix it..
Ok, back to work....
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Installation and Upgrades / Re: SOFTWARE RAID: lot of troubles !!!
« on: October 06, 2011, 08:30:24 pm »
Thanks for the links, got that info already.
If you want to swap data-disks on a regulair basis, then it's not a very handy way.
Centos and RedHat handles this better, but maybe ubtuntu will get this improved later too ;-)
If you want to swap data-disks on a regulair basis, then it's not a very handy way.
Centos and RedHat handles this better, but maybe ubtuntu will get this improved later too ;-)
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Installation and Upgrades / Re: SOFTWARE RAID: lot of troubles !!!
« on: October 06, 2011, 07:45:15 pm »
That's your opinion ;-) We can discuss this all, but that's useless: some people like the color blue and other peoples don't..
If you use software-raid and have a couple of datadisks (2, 3 or more) which you are using to keep all the data - it's very nice if you can remove 1 disk and exchange it with another disk without a lot of trouble to get the server running again. this is very handy if you want to keep a harddisk with all the data on a safe place (backup). And no waste of time.
Linux-distro's like CENTOS have no troubles with that all all.
So, maybe you would test this all by yourself (you seem to be an expert) and try to fix the problem: this for all Zentyal users and ofcourse the Zentyal company ;-)
Anyway, thanks for your posting !
If you use software-raid and have a couple of datadisks (2, 3 or more) which you are using to keep all the data - it's very nice if you can remove 1 disk and exchange it with another disk without a lot of trouble to get the server running again. this is very handy if you want to keep a harddisk with all the data on a safe place (backup). And no waste of time.
Linux-distro's like CENTOS have no troubles with that all all.
So, maybe you would test this all by yourself (you seem to be an expert) and try to fix the problem: this for all Zentyal users and ofcourse the Zentyal company ;-)
Anyway, thanks for your posting !
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Installation and Upgrades / Re: SOFTWARE RAID: lot of troubles !!!
« on: October 06, 2011, 07:15:43 pm »
Switched back to ClearOS again, very stable system (centos).
And perfect software-raid functionality inside...
But I will allways keep a look at zentyal: great system but it should run with CENTOS or REDHAT, not ubuntu..
It's a pitty, but a good and very stable software-raid system is essential...
I hope that the Zentyal company can fix this HUGE problem..
And perfect software-raid functionality inside...
But I will allways keep a look at zentyal: great system but it should run with CENTOS or REDHAT, not ubuntu..
It's a pitty, but a good and very stable software-raid system is essential...
I hope that the Zentyal company can fix this HUGE problem..
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Installation and Upgrades / SOFTWARE RAID: lot of troubles !!!
« on: October 06, 2011, 08:29:39 am »
After some heavy testing I found out that Zentyal (or lets's say UBUNTU) has serious troubles with SOFTWARE RAID...
Normally I use 4 (!) equal harddisks which are in RAID1 (mirror) as my DATA-DISK set.
If I shutdown the server and disconnect 1 disk, the server must be detect the problem and automatically start again with one harddisk less.
As soon there is a new hardddisk added, the administrator must have the option to add this new disk to the RAID.
(With ClearOS (Centos based) I used WEBMIN to add the new drive to the raid, also possible in Zentyal (after installing MDADM))
But as soon you disconnect a drive from the raid1, the system doesn't start normally. You must do a lot of unneeded things to get the system alive again !
I really like Zentyal, but dataprotection is the most importent thing of a server.
So, I hope this is something what can be fixed very easy (I remove one harddisk for a new one every month to have a complete backup of all the data on a harddisk not connected to the server), but after searching the internet this seems to be a non-solved issue from UBUNTU Linux...
Clearos and Centos has no problem with this at all.
A hardware-raid is faster, but if the raid-controller fails, you have serious problems to get the data back... So, not the right sollution..
Normally I use 4 (!) equal harddisks which are in RAID1 (mirror) as my DATA-DISK set.
If I shutdown the server and disconnect 1 disk, the server must be detect the problem and automatically start again with one harddisk less.
As soon there is a new hardddisk added, the administrator must have the option to add this new disk to the RAID.
(With ClearOS (Centos based) I used WEBMIN to add the new drive to the raid, also possible in Zentyal (after installing MDADM))
But as soon you disconnect a drive from the raid1, the system doesn't start normally. You must do a lot of unneeded things to get the system alive again !
I really like Zentyal, but dataprotection is the most importent thing of a server.
So, I hope this is something what can be fixed very easy (I remove one harddisk for a new one every month to have a complete backup of all the data on a harddisk not connected to the server), but after searching the internet this seems to be a non-solved issue from UBUNTU Linux...
Clearos and Centos has no problem with this at all.
A hardware-raid is faster, but if the raid-controller fails, you have serious problems to get the data back... So, not the right sollution..
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Installation and Upgrades / Re: Zentyal 2.2 (64bits) installation: FAILURE (can't install software)
« on: October 05, 2011, 12:46:29 am »
Downloaded and installed the 64bits installer (2.2.1) today: installation worked perfect now !!! GOOD JOB !!!!!
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Installation and Upgrades / Re: HOWTO: WEBMIN installation: can't login ? -> SOLVED !
« on: October 05, 2011, 12:45:21 am »
Just installed Zentyal 2.2.1 and Webmin. (used webmin in the past with Ebox, no problems)
Add the service Webmin and opened the port 10000 for it too.
I can go to https://localhost:100000 but if I want to login with the administrator account (root doesn't work, so the sudo account doesn't): it failed...
I solved this in this way:
-> login in a shell
-> change the webmin password with:
sudo perl /usr/share/webmin/changepass.pl /etc/webmin username newpassword
After that, a succesfully login in webmin !
BUT: be carefully with all the webmin options !!!
Add the service Webmin and opened the port 10000 for it too.
I can go to https://localhost:100000 but if I want to login with the administrator account (root doesn't work, so the sudo account doesn't): it failed...
I solved this in this way:
-> login in a shell
-> change the webmin password with:
sudo perl /usr/share/webmin/changepass.pl /etc/webmin username newpassword
After that, a succesfully login in webmin !
BUT: be carefully with all the webmin options !!!
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Installation and Upgrades / Zentyal 2.2 (64bits) installation: FAILURE (can't install software)
« on: October 03, 2011, 12:35:14 pm »
I am trying to install Zentyal 2.2 (64bits) on a system with 1 IDE-harddisk and a working network.
Install (Delete all disks), automatic mode: after some time it fails: can't install the software...
Sometimes it gets further but the system stops when it's installing Firefox (at 84%)....
I have tried also a mirror, same option. Different kernel, same problem...
1 time it worked (not sure why), and I had a working system: after this: fresh new installation to see what's happening.
Now I can't get it installed succesfully ! (I am sure the network (DHCP) is 100% ok.
CD checked too by the installation-software: 100% ok, no failures.
Expert mode tried also: LVM and some other things, no luck.
I hope somebody can tell me what to do ?
I want to switch to Zentyal (from ClearOS), because it's better: but the installation is difficult in this way...
HELP PLEASE !!!!!!!!!!!!!!!!!!!!!
Install (Delete all disks), automatic mode: after some time it fails: can't install the software...
Sometimes it gets further but the system stops when it's installing Firefox (at 84%)....
I have tried also a mirror, same option. Different kernel, same problem...
1 time it worked (not sure why), and I had a working system: after this: fresh new installation to see what's happening.
Now I can't get it installed succesfully ! (I am sure the network (DHCP) is 100% ok.
CD checked too by the installation-software: 100% ok, no failures.
Expert mode tried also: LVM and some other things, no luck.
I hope somebody can tell me what to do ?
I want to switch to Zentyal (from ClearOS), because it's better: but the installation is difficult in this way...
HELP PLEASE !!!!!!!!!!!!!!!!!!!!!
9
Installation and Upgrades / Re: Not working: system, network, users, http proxy, firewall, etc.
« on: August 10, 2010, 08:26:55 am »More information is needed.
Did you follow the instructions http://trac.ebox-platform.com/wiki/Document/Documentation/InstallationGuide ?
I just did an install last night and its working perfectly.
I have done this from scratch: used the instructions.
Also tried to reinstall (from scratch, so 100% format) Ebox 1.5 (using the Ebox CD) again, same problems after updates...
So, I decide to switch TEMPORALY to http://www.amahi.org/ for a while until the Ebox system is running without problems... Amahi (also available with install-CD) is based on Fedora Linux. Ebox is more easy but on the moment not stable enough ;-(
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Installation and Upgrades / Not working: system, network, users, http proxy, firewall, etc.
« on: August 07, 2010, 12:25:28 pm »
The following modules are not working: Not working: system, network, users, http proxy, firewall, etc.
I have installed Ubuntu Lucid 64bits and the latest Ebox software.
It looks better then in the past, but now importent modules can't be accessed in the dashboard.
SAME THING IN OUR OFFICIAL 1.5 EBOX system?
Some of the updates made a mess with it !!??
HELP EBOX ??!!!!!
I have installed Ubuntu Lucid 64bits and the latest Ebox software.
It looks better then in the past, but now importent modules can't be accessed in the dashboard.
SAME THING IN OUR OFFICIAL 1.5 EBOX system
?Some of the updates made a mess with it !!??
HELP EBOX ??!!!!!
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Installation and Upgrades / Re: HOWTO: WEBMIN installation
« on: June 18, 2010, 11:21:46 am »
thomas: you are totally right 
This howto is made for the gaps, many Ebox-users would like some howto's specially
written for their Ebox-server. Not everybody is a Linux-expert, it's true most information can be found on for example the webmin-website: but it's handy if there are Ebox howto's available here ;-)
This howto is made for the gaps, many Ebox-users would like some howto's specially
written for their Ebox-server. Not everybody is a Linux-expert, it's true most information can be found on for example the webmin-website: but it's handy if there are Ebox howto's available here ;-)
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News and Announcements / Re: First version of the new FTP module released!
« on: June 09, 2010, 02:36:43 pm »
Just installed Ebox 1.4.2 again.
Which ftp-system is used for the new ftp-module ?
I need the ftp-system, but because 1.5 is not ready yet (and got some problems with the 64bits version) I want to setup ftp in 1.4.2
Any help would be appreciated ;-)
(and a lot of others would be happy too !
Which ftp-system is used for the new ftp-module ?
I need the ftp-system, but because 1.5 is not ready yet (and got some problems with the 64bits version) I want to setup ftp in 1.4.2
Any help would be appreciated ;-)
(and a lot of others would be happy too !
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Installation and Upgrades / Ubuntu server 64bits Lucid and Ebox 1.5
« on: June 09, 2010, 12:39:44 am »I have installed my server from scratch again: Ubuntu server Lucid 10.04 64bits (without packages except the virtual machine package). After that: I update/upgrade and install the 1.5 modules as described here on the forum. So far so good.
Ebox runs ok, after enabling all the modules in Ebox and do some setup there I restarted the server.
It boots but stopped because it can't find the ldap server...
Something else: the ebox-dashboard is (when the server works in before the reboot) much slower then when I had installed the Ebox-server 1.4.2 software (just the official Ebox CD image).
Problem now: server doesn't work now. Will install it again using the 1.4.2 cdrom.
(had to do some work, server files (fileshares on my mirror-disks) are needed...
Maybe this is something what needs to be investicated by the Ebox company ??
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Installation and Upgrades / Re: HOWTO Postfix Quota Notification Email Script
« on: June 04, 2010, 07:54:57 pm »
Thanks !!!!
Allways happy when people create and share Howto's !!!!
This is a good way to help the Ebox-company to improve their great software !!!
Allways happy when people create and share Howto's !!!!
This is a good way to help the Ebox-company to improve their great software !!!
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News and Announcements / Re: Mail modules available for eBox 1.5!
« on: June 04, 2010, 12:32:18 am »
Good work !!!!!!!!!!!!!!!!!!!!!
I have left ClearOS (Clarkconnect) now totally, Ebox is really getting great !
Looking forward to a 64bits Ebox system !!!
And maybe a CLOUD of EBOX servers?
I have left ClearOS (Clarkconnect) now totally, Ebox is really getting great !
Looking forward to a 64bits Ebox system !!!
And maybe a CLOUD of EBOX servers
?
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