Hardware :: Configure The Master And Slave On 5 Sata Disks?

May 13, 2010

How to configure the master and slave on 5 Sata disks? Is there that or it is automatic.I install Debian, ok, master boot ok, on the first sataAnd at reboot, just after install, the boot hangs and no grub appears.

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Server :: Configure Master / Slave Dns Using SSL Authentication While Transferring The Zone Files

Jul 11, 2011

In our Server they configure Master / Slave Dns using SSL authentication while tranfering the zone files, i dont have much idea about ssl authentication for Dns, how it will works

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Ubuntu :: Slave Or Master Drive. Does It Matter?

Aug 14, 2010

i'm about to perform a fresh ubuntu install, and i was wondering if anyone knew whether installing on the slave or master drive mattered. i know if you're installing on the same drives it's slightly faster for ubuntu to be installed first, but that doesn't seem to be the case since i have two separate drives

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General :: How To Transfer All Zone From Master To Slave

Mar 15, 2010

I installed bind 9 sucessfully, and create many zones on its.

I want to biuld 1 slave server but i have problem :

How to transfer all zone from master to slave server ?

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General :: Master And Slave DNS Server Replication

Nov 29, 2010

I configured a master DNS server working OK. After that I configure a DNS Slave Server ( initial replication worked fine. This is test environment for my certification. I see how the zones from my master are transferred
zones in Master
transferred zone to my slave when I started named service

That's Ok but I added some IPs to resolve to my master zone
webserver IN A
fileserver IN A

I restart/reload named on master and after that I go to slave and restart/reload but zones wuth the new values are not replicated. How long does it take for slave to take the changes from master? how is the procedure manual or automatic? I see If I go to slave and delete sec.training.com and restart named the zone with the changes is transferred but that is very manual... I am including my DNS Configuration so you can take a look.

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Server :: Bind Views With Master And Slave

Apr 12, 2011

I have bind configured with Internal and External views, but the slave server is transferring only the Internal zone files for both Internal and External - a diff shows no difference, and the log shows the same serial number.What am I missing in the config so the slave server properly receives updates from the master for both views?

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CentOS 5 Server :: DNS Not Replicating From Master To Slave?

Jan 27, 2010

I have set up a master BIND DNS server with 2 slaves. All the services start up fine on all 3 servers, but zones and named.conf info is not being replicated. The 3 servers are tentatively installed on a Xen virtual server for testing purposes. All 3 servers are 64bit and installed with: -> CentOS release 5.4 (Final) - 2.6.18-164.10.1.el5xen -> BIND 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2

All 3 servers are fully updated. All 3 servers have static IP addresses. The services on all 3 servers start up without any apparent issues. Master server: # /etc/init.d/named restart ; tail -f /var/log/messages


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Ubuntu Installation :: HDD Config - Secondary Master / Slave

May 1, 2011

I have an EeePC 901, with a 4gb SSD and a 16gb SSD installed. Trying to get Natty installed and hit a few problems not least of which, that it won't fit on the 4gb drive! However in my BIOS setup under HDD config it says:
Secondary Master=4gb
Secondary Slave=16gb
I have no other devices attached. Why aren't they Primary? And I can't seem to switch them round.

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Red Hat / Fedora :: Convert Slave To Master And Enable Writing To Db?

Jan 27, 2010

Is there any possible to convert slave to master, and enable writing to db?

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Server :: Distribute Securenets File From NIS Master To Slave?

Jan 25, 2011

I have a large environment with many VLANs and NIS slaves serving the VLANs. Previously we have not used a securenets file (don't worry; we don't use NIS for passwords, just NFS maps), but I'd like to start. The number of NIS slaves makes it annoying to update a securenets file on each when we add a new VLAN. Is there a way to propagate the securenets file to each slave when I update it on the master?If not, I guess I can live with propagating the file once and only visiting new slaves when I build them, because in 99% of cases a NIS slave only serves its own subnet.

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Server :: New Zone Entry In Master Not Getting Updated At Slave

Feb 19, 2011

I have configured master and slave Bind servers. Everything works fine. But whenever I add a new zone entry at master server it is not getting updated at slave server in logs I see this error:
client view external: received notify for zone 'yourdomainname.com': not authoritative

At master server I do not see any error or warning message. This error clearly indicates that named.conf file does not have zone entry in it or domain name is wrong. While checking the named.conf file I see that the zone entry has not been updated at slave server. If I update it manually and reload named on slave then zone files (db files) are getting created without any issue and any modification at master server for the zone records are also getting updated. My concern is why zone record is not getting appended at slave server in named.conf file.

Is there anything I am missing in the configuration. I am pasting the steps which I have followed to configure my master and slave server:
Configure Bind as master and slave server
Install Bind on your server
yum install bind
sudu apt-get install bind9
Generate RNDC Key using the command
rndc-confgen -a -k rndc-key
it will stored in /etc/rndc-key file
Master Server IP
Slave Server IP
Master Server Configuration
options .....

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Debian Hardware :: Servers Which Contain SATA Disks And SAS Disks?

Feb 25, 2010

I have servers which contain SATA disks and SAS disks. I was testing the speed of writing on these servers and I recognized that SAS 10.000 disks much more slowly than the SATA 7200. What do you think about this slowness? What are the reasons of this slowness?

I am giving the below rates (values) which I took from my test (from my comparisons between SAS 10.000 and SATA 7200);

dd if=/dev/zero of=bigfile.txt bs=1024 count=1000000 when this comment was run in SAS disk server, I took this output(10.000 rpm)

(a new server,2 CPU 8 core and 8 gb ram)

1000000+0 records in
1000000+0 records out
1024000000 bytes (1.0 GB) copied, 12.9662 s, 79.0 MB/s (I have not used this server yet) (hw raid1)


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Software :: Master And Slave OpenLDAP Setup Using Replication Method

May 13, 2011

I'm setting up a Master and Slave OpenLDAP (ver. 2.4.25) use Replication method following {URL]. When I used slapdcat (slapdcat -l master_dump.ldif), I got a message:

root@ldap:/usr/local/openldap/sbin# ./slapcat -l master_dump.ldif
/usr/local/openldap/etc/openldap/slapd.conf: line 89: <replogfile> keyword is obsolete (ignored)
/usr/local/openldap/etc/openldap/slapd.conf: line 91: <replica> keyword is obsolete (ignored)
bdb_db_open: warning - no DB_CONFIG file found in directory /usr/local/openldap/var/openldap-data: (2).
Expect poor performance for suffix "dc=abc,dc=com".
bdb_monitor_db_open: monitoring disabled; configure monitor database to enable

My Master slapd.conf is:
# Require 112-bit (3DES or better) encryption for updates
# Require 63-bit encryption for simple bind
# security ssf=1 update_ssf=112 simple_bind=64

# Sample access control policy:
# Root DSE: allow anyone to read it
# Subschema (sub)entry DSE: allow anyone to read it
# Other DSEs:
# Allow self write access
# Allow authenticated users read access
# Allow anonymous users to authenticate

# Directives needed to implement policy:
# access to dn.base="" by * read
# access to dn.base="cn=Subschema" by * read
# access to *
# by self write
# by users read
# by anonymous auth
# if no access controls are present, the default policy allows anyone and everyone to read anything but restricts updates to rootdn. (e.g., "access to * by * read") .....

My Slave slapd.conf is similar configuration to the Master Server...

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Ubuntu Servers :: Live / Instant Rsync For Master Slave Setup

Feb 8, 2011

I need to perform instant filecopy between a pair of servers. Its loosely based on a master slave setup as we have ucarp floating a virtual IP between the two. services are on both boxes (tftp, apache). I'm happy with that, I now need a way to instantly sync files from set directories, as we could see problems if files have changed should the system fail over without being in sync

I know I could cron *1 but I don't want it running EVERY minute, in any case, if the change was within the last minute, then it wouldn't have the change anyway. I think it can be done with rsync daemons on box boxes, but I can't find a guide to to this. ATM the slave has been setup to accept rsync from the master, so I just need the config to have all changes on the master instantly replicated.

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Server :: Setup LAMP With MySQL Master/slave Replication And Apache Rsync?

Aug 12, 2010

I started over combining the first parts of this guide: [URL]..ubuntu8.04 (Only the first few parts in terms of configuration and naming). Then I used this guide: [URL]..Surprisingly enough all steps worked.

1. Now I need to set up LAMP servers with MySQL master/slave replication and Apache rsync.

2. Next i need to add BIND to both my Load Balancers with master/slave backup and replication...

Are there any guides to look at to follow on these? Can tou point me to the right direction for BIND with replication.

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Red Hat / Fedora :: Configure DNS Slave Server In RHEL5/6?

Apr 11, 2011

I am studying RHEL myself, not clear with following topics How to configure DNS slave server in RHEL 5 Whether named.rfc1912.zones file entry can be included in named.conf itslef,if not What is following entry means inside named.conf file

zone "." in{
type hint;
file "root.servers";


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Ubuntu Installation :: Automount Sata Disks On Start?

Jan 17, 2010

i installed latest ubuntu server 9.10 on my mini itx board which i have 1 4gb IDE disk and 4x2TB sata disks attached no i want those disks to automount on startup is there a way without modifiying fstab? the thing is, i want to expand the storage over time (next hard disks in a few months) and maybe a second mainboard in a year so i need a simple way to mount everything without being to mainboard specific like doing fstab entries

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Ubuntu Installation :: Blocking - SATA Disks Not Recognized

Sep 2, 2010

I try to install ubuntu 10.04.1 on my pc but i fails at the very beginning because of HDD problem. I get messages such as :


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Ubuntu Installation :: USB Detected Beofre The Sata Disks Are?

Oct 19, 2010

used to run ARC linux and Windows 7 on my computer and i am now trying to install Ubuntu 10.10 X86_64When i used the live disc of Ubuntu 10.04 and load the installer it finds my four harddrive they way it should... sda,sdb,sdc,and sdd...When i however try the same with ubuntu 10.10 it displays my usb cardreaders drives first and then my hardrives as sde sdf sdg and sdh.I tried installing ubuntu with the reader unplugged and then reconnecting it after installation...But when i then boot with the reader attached it says it cannot mount drives sda,sdb,sdc and sdd becuase they are not ready.I think it is again detecting the usb cardreader before the sata controller ...Is there a way for me to alter the boot detection order so it will find my harddrives first and then the usb cardreaders ports ?

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CentOS 5 Hardware :: Poor I/O Performance On IDE/SATA Disks?

Jan 13, 2010

I've just removed fedora 10 and installed CentOS 5.4 both x86_56 on my Lenovo ThinkCentre 9091-CTO workstation, and observed serious performance degradation while intensive I/O operations and huge load without significant CPU consumption in user mode with about 50% in I/o wait.For example if I do the "tar xjvf some_large_tar.bz" file and run vmstat i get the output below. This is the only cpu and io intensive process running. The load gets up to 6 on C2D CPU and the machine has unacceptable responsivness.

[root@f00 ~]# vmstat 5 10
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st


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Server :: Email Notification - Heartbeat To Send Email When The Slave Server Becomes The Master?

May 3, 2010

Have someone used Linux heartbeat to send email when the Slave server becomes the Master? I've read I can configure the MailTo under.

But I really don't know how to do it. I basically need my primary server to send an email when it becomes inactive and all the activities are manage by the secondary node.

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Fedora Hardware :: F13 - Udev Des Not Create Entries For SATA Disks

Jul 17, 2010

I have Fedora 13 installed in a new computer, and form some weird reason, udev is skipping three of my HDs. Looging the output for udev --triger, the entries for the HDs are skipped

[root@storage ~]# lspci
00:00.0 Host bridge: ATI Technologies Inc RD780 Northbridge only dual slot PCI-e_GFX and HT1 K8 part
00:02.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (external gfx0 port A)
00:06.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port C)
00:07.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port D)
00:0a.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port F) .....

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OpenSUSE Install :: Installer Will Not Detect Hard Disks (SATA)?

Dec 19, 2009

Trying to install SUSE on a perfectly working PC that was running Windows. Blew away all the partitions and formated the drives.When trying to install SUSE, Installer will not detect my two hard disks. Tried with version 10.x, 11.1 and 11.2, without success.My Mobo is a XFX GeForce 8209, and my SATA drives are both Seagates (1x120GB, 1x320GB). I've tried different SATA mode selection (i.e. SATA, AHCI, and RAID) without any success either.I've tried to look for SATA controller drivers for my Mobo, to try to load on Installer startup, but failed there too.

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OpenSUSE Install :: 11.2 - Dell SAS / SATA Virtual Disks (RAID 1)

Sep 17, 2010

I have a Dell Studio XPS running openSUSE 11.2 with dual mirrored disks (using Dell's SATA controller). Does anyone know how I can set up automatic monitoring of the disks so that I will be informed if either fail? I think smartd might be what I need here. Is that correct? I added:
/dev/sda -a -d sat -m <my email>
/dev/sda -a -d sat -m <my email>

smartd is running, but how do I know that it will report what I need? I also have a client with a Dell PowderEdge SC440 with SAS 5/iR also running openSUSE 11.2. They also require automatic monitoring. There doesn't seem to be a SAS directive for smartd. I notice that the newer release says it does support SAS disk. I upgraded to 5.39. On restart (with DEVICESCAN as the directive) I get the following in /var/log/messages for my SAS RAID disk.

Sep 18 10:47:26 harmony-server smartd[25234]: Device: /dev/sdb, Bad IEC (SMART) mode page, err=4, skip device
I ran:
smartctl -a /dev/sdb
and got the result:
smartctl 5.39.1 2010-01-28 r3054 [x86_64-unknown-linux-gnu] (openSUSE RPM)
Copyright (C) 2002-10 by Bruce Allen, smartmontools

Device: Dell VIRTUAL DISK Version: 1028
Device type: disk
Local Time is: Sat Sep 18 11:32:08 2010 JST
Device does not support SMART
Error Counter logging not supported
Device does not support Self Test logging

Is there some other tool/package that does support DELL virtual disks?

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Ubuntu Servers :: Mount 4 Internal Sata Disks Using Hal On Installation?

Jan 20, 2010

i currently try to mount 4 internal sata disks using hal on a server installation?

i did

apt-get install hal and copied a .fdi script to /usr/share/hal/fdi/policy/10osvendor/30-storage-all.fdi

as far is i understand now i need a hal/dbus client
gnome-volumen-manager seems to be one
apt-get install gnome-volume-manager

now im stuck there is no such executable like gnome-volumen-manager thus, how does it work? how can i start it? how do i know if and why the .fdi script works or fails?

since its a server edition and its purpose should be a very minimized server install i dont want a GUI like gnome fully installed

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Hardware :: Two SATA Disks:counldn't Find Partitions In The Second Disk?

Sep 1, 2010

I have two SATA disks, 80G and 1T. Using "df" command we can see the all partitions:

/dev/sda3 6.7G 2.5G 3.9G 40% /
tmpfs 1.7G 0 1.7G 0% /lib/init/rw
udev 1.7G 220K 1.7G 1% /dev


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Server :: Unable To Configure Slave Nodes On Rocks Cluster?

May 28, 2010

I am trying to setup Rocks Cluster on a Cluster containing 1 Master node and 23 slave nodes connected via a Switch. The master node's eth1 is connected to public IP and eth0 is connected to the slave nodes via the switch.

I was able to install the Rocks cluster on the machine, I configured the IP for master through DHCP. When I run the command 'insert-ethers' on the master node, it doesnot get me any slave nodes.

setting up the Rocks cluster on all the nodes?

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Fedora Installation :: After Preupgrade: F15 Doesn't Recognize Sata Disks Connected Through Marvell Controller

May 31, 2011

I upgraded F14 to F15; However, F15 no longer recognizes my 3 sata disks connected through Marvell controller. The controller is an integrated Marvell chipset 88SE6480. The controller has its own manufacturer driver but it was intended for RHEL 5.4 (mv64xx) and installation of this driver fails to generate mv64xx driver.

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Server :: How To Configure Dns Cache Name Server With Slave Domain

Jul 5, 2010

I don't know how configure or how explain what i want to do .... i have one server with dhcpd and dns name cache (also squid as a transparent proxy and iptables), this works fine but logs show this code...

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Hardware :: Can SATA 3 (SATA III) Hard Disk Be Run On Motherboard Which Only Support SATA II

Aug 13, 2010

Can SATA 3 (SATA III) Hard disk be run on motherboard which only supports SATA II, except sacrificing the speed (throughput)?

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