> -----Original Message----- > From: owner-ccp...@jiscmail.ac.uk [mailto:owner-ccp...@jiscmail.ac.uk] On > Behalf Of Adam Ralph > Sent: 24 August 2009 15:25 > To: CCP4BB@JISCMAIL.AC.UK > Subject: Re: [ccp4bb] Linux flavour and hard disks
> You also need a swap partition, > this should be 2 to 3 times the memory size. Maybe somebody knows the > optimum size. Hi, here: https://help.ubuntu.com/community/SwapFaq it explains that 1 to 2 times memory size is optimal. However note that this calculation assumes you are going to use the "hibernate to disk" feature which allows you to restart the machine in exactly the state it was when you last hibernated (and which obviously needs to use an amount of disk space equal to the memory size). First, this assumes that you are actually going to use "hibernate to disk" (it's clearly very handy for laptops, but probably irrelevant for servers which are rarely turned off). Second it assumes that the "hibernate to disk" feature does actually use the swap partition for this purpose: I believe some systems use a dedicated hibernate partition, so then you wouldn't need to allocate extra swap space. So in some cases you could reduce the swap partition to 1 times memory size. It's hardly worth arguing about anyway, the difference in disk usage is likely to be < 1% of the total, so probably most people won't even consider the options and just go with the default! Cheers -- Ian Disclaimer This communication is confidential and may contain privileged information intended solely for the named addressee(s). It may not be used or disclosed except for the purpose for which it has been sent. If you are not the intended recipient you must not review, use, disclose, copy, distribute or take any action in reliance upon it. If you have received this communication in error, please notify Astex Therapeutics Ltd by emailing i.tic...@astex-therapeutics.com and destroy all copies of the message and any attached documents. Astex Therapeutics Ltd monitors, controls and protects all its messaging traffic in compliance with its corporate email policy. The Company accepts no liability or responsibility for any onward transmission or use of emails and attachments having left the Astex Therapeutics domain. Unless expressly stated, opinions in this message are those of the individual sender and not of Astex Therapeutics Ltd. The recipient should check this email and any attachments for the presence of computer viruses. Astex Therapeutics Ltd accepts no liability for damage caused by any virus transmitted by this email. E-mail is susceptible to data corruption, interception, unauthorized amendment, and tampering, Astex Therapeutics Ltd only send and receive e-mails on the basis that the Company is not liable for any such alteration or any consequences thereof. Astex Therapeutics Ltd., Registered in England at 436 Cambridge Science Park, Cambridge CB4 0QA under number 3751674
