[Freeipa-users] Disk layout - requirements

[Rob Crittenden]

Dmitri Pal wrote:
> On 05/06/2011 11:58 AM, Sigbjorn Lie wrote:
>> On 05/06/2011 04:12 PM, Rob Crittenden wrote:
>>> Steven Jones wrote:
>>>>
>>>> Hi,
>>>>
>>>> Digging through docs / googling I cant see any disk partition
>>>> suggestions and size thereof requirements...
>>>>
>>>> Suggestions please?  sizing for 500 servers, 2000 desktops, 5000+
>>>> users...
>>>>
>>>> Especially around having different sections of the IPA master of
>>>> different raid groups if that's needed...
>>>
>>> It depends in part how you use IPA. A bare-bones user entry is about
>>> 1k, a host that has a certificate is about the same. There is some
>>> amount of overhead in the DIT and you'll need to consider the space
>>> for groups, how many kerberos services you'll deploy (also about 1k
>>> in size) and what other features of IPA you'll use. We have quite a
>>> few indexes into the data, that will take some room too.
>>>
>>> I think additional RAM will be better than terabytes of disk. 389-ds
>>> is going to try to cache much of this data, and with this number of
>>> entries it can probably keep most if not all of the database in memory.
>>>
>>> We haven't done any analysis on different FS performance.
>>>
>>> Does that help?
>>>
>>> rob
>>
>> Would you consider these documents describing sizing and performance
>> tuning of the RH DS to be comparable/transferable to IPA?
>>
>>
>> http://docs.redhat.com/docs/en-US/Red_Hat_Directory_Server/8.2/html/Installation_Guide/Installation_Guide-Platform_Support.html#Installation_Guide-Platform_Support-Hardware_Requirements
>>
>>
>> http://docs.redhat.com/docs/en-US/Red_Hat_Directory_Server/8.2/html/Performance_Tuning_Guide/system-tuning.html
>>
>>
>>
>
> Yes these documents are applicable and can be used to tune up DS server
> under IPA.

Be careful to note that in the first document the disk space assumptions 
are for 100 byte entries and some (but not all) of the IPA entries are 
10x that.

Thanks for the links Sigbjorn.

regards

rob