Expert Opinion

Thread Tools Search this Thread
Top Forums UNIX for Advanced & Expert Users Expert Opinion
# 1  
Old 02-23-2009
Expert Opinion

This perhaps does not belong in ths category; apologies, however, we have a heated debate going and your input will decide the result.

Should UNIX (HP, AIX, etc) be rebooted following a monthly cycle (Every month, or a qtr, etc.). We have some UX admins (grumps) who say they have seen a UX server up for 5 years and etc. etc.

I have tried reading up on this topic but in the end I have decided to go to the people who do this for a living.

So what is a good practice?

Best of regards,

# 2  
Old 02-23-2009
like ever... it depends...

i'm a friend of doin reboots on a regular basis to be sure all settings are saved in files and not only made temporarily. also if hardware has changed (which can be done online on some systems) i would recommend a reboot to be sure everything works as expected...
# 3  
Old 02-23-2009
I'm with DukeNuke - periodic reboots have advantages, and show up problems. We take our boxes down over long (3 day) weekends, so it works out to several times per year.

However, we have 400+ blade servers running eithe Linux or Windoze - those are rebooted monthly.

If your grumps have left a box up for several years, taking it down has a higher probability of exposing problems, so in that case leave it alone. May be more trouble than you want. Older boxes are slower anyway - it may be possible that 4 years on a really old UNIX box is the same number of cpu cycles as you see on a new Linux dualcore PC in one month.
# 4  
Old 02-23-2009
.. not so long ago, HP ran a contest to find the longest-running HP-unix box in the world. They found one in England which had been running since 1992 without a reboot.
.. wouldn't you love to unplug the power on that one Smilie

Anyway, I think it depends on what the server does and how's maintained. In the past, I've had servers running for 3-4 years non-stop, only stopped to be replaced with new ones, but these servers were doing 3 things, and 3 things only, with no updates and no regular users logging in and screwing them up. If you are not rebooting the server, you are not patching the kernel (or if you are, you are risking your kernel getting corrupted).

If you have a server which is constantly having stuff installed and uninstalled, or configs changed, yeah I would say a reboot schedule may be in order, but a turnkey system, not so much.
# 5  
Old 02-23-2009
This has come up before.

in 2004 I am against
in 2008 I am in favor

Take your pick. Smilie
# 6  
Old 02-24-2009
We patch all our systems twice a year, and those are the only times we reboot servers. Other than that, break/fixes are the only times the servers go down.

If we do overlook a server during a particular patch cycle, then we experience longer patching duration for the same server at our next patch cycle, and that's never fun Smilie
# 7  
Old 03-02-2009
I thank you all for your time and reply. SInce the servers host an application to which about 20-25 people log in daily, etc. we have decided to re-boot at least once quarterly. The grumps have been out voted.

Thanks again.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. AIX

[Opinion] A Public Answer To Rob McNelly

Why Do We Need Root on the HMC? In this article in IBMSystems Magazine Rob McNelly asked the question Why Don't We Have Root on the HMC? and he goes on to justify why we indeed shouldn't have root - kinda. I think his arguments are not as valid as he perhaps thinks they are and what's more... (11 Replies)
Discussion started by: bakunin
11 Replies

2. Shell Programming and Scripting

Opinion on an easy shell script (mv)

:wall:I've this simple code: STF=/opt/aaa cat $STF | nice sort -u > $ && mv $ $STF Which works until today. What happened is that this script has been corrupted the FS, so I've to use fschk to repair the filesystem. I presume the move command executed just a little too early... (1 Reply)
Discussion started by: accolito
1 Replies

3. What is on Your Mind?

Something in my mind - what's your opinion ?

Dear Forum staff / Advisors / members , I am having something in my mind, about Linux / Unix possible Interview questions collections, I guess if I post them here,which might be useful for our members and for students, and in meantime we can discuss also about those questions, what's your... (4 Replies)
Discussion started by: Akshay Hegde
4 Replies

4. UNIX for Advanced & Expert Users

Expert opinion on iptables/torrents

Hello all, I want to deny any torrents passing thru linux box that are NOT encrypted. My ISP is doing packet inspection and gives warnings. I'd like to allow torrents when client sets encryption. Any thoughts? (5 Replies)
Discussion started by: darkman_hr
5 Replies

5. UNIX and Linux Applications

Opinion on modification for SMARTMON

Hello, I get the following in one of my error logs: Device /dev/sda, SATA disks accessed via libata are not currently supported by smartmontools. When libata is given an ATA pass-thru ioctl() then an additional '-d libata' device type will be added to smartmontools. --------------- ... (1 Reply)
Discussion started by: mojoman
1 Replies

6. UNIX for Dummies Questions & Answers

Opinion on modification for SMARTMON

Hello, I get the following in one of my error logs: Device /dev/sda, SATA disks accessed via libata are not currently supported by smartmontools. When libata is given an ATA pass-thru ioctl() then an additional '-d libata' device type will be added to smartmontools. --------------- I... (0 Replies)
Discussion started by: mojoman
0 Replies

7. UNIX for Dummies Questions & Answers

second opinion on sed script

i'm trying to figure out a script that uses sed, and i'm not totally sure if it does what I think it does. The script... - takes in 3 inputs, $1, $2 are names. $3 is a file. - filename is a file. Here is what I'm trying to figure out: cat $3 | grep "id17" > var2 sed "s|@@.*||g" var2 >... (1 Reply)
Discussion started by: gammaman
1 Replies

8. Post Here to Contact Site Administrators and Moderators


Hi, I am new at this site and at unix. I was reading some answers that the administrators and moderators have posted to others, and sometimes I feel like their a little sarcastic. I am asking just to be patient to me, I know nothing about unix but I do want to learn, and I think that positive... (7 Replies)
Discussion started by: HN19
7 Replies

9. Solaris

Your Opinion requested

Ladies/Gentlemen, I am looking for a web-based tool to keep track of my Sun inventory. The following list of fields are fields I would like to store: Root Passwd (needs to be secure) / Hostid / Console Port / IP Address / Platform / Application / Hostname . . . you get the point. Do any of... (4 Replies)
Discussion started by: pc9456
4 Replies

10. UNIX Desktop Questions & Answers

Need your help and opinion

Hey all, I'm brand new to Unix/Linux and have a couple of questions. I own a small education/consulting company that has a staff of approx. 50 employees. Most our work is geared towards the office-style environment (i.e. Word, Excel, Powerpoint, etc.). There are also some C and Java programmers... (4 Replies)
Discussion started by: dennie1
4 Replies
Login or Register to Ask a Question

Featured Tech Videos