Additionally, the Unity doc states that DRS backups put a heavy load on the server, and should be started, ran, and completed within a maintenance window (or overnight). It gives an example of 3GB/hr, so a 15GB store can be backed up in 6 hours.<div>
<br></div><div>My question is: If I have an HA pair, and the environment is designed such that the secondary server handles all calls first, could I run the backup mid-day on the primary without impact to the secondary?</div>
<div><br></div><div>Anthony<br><div><br><br><div class="gmail_quote">On Wed, Mar 23, 2011 at 1:31 PM, Anthony Holloway <span dir="ltr"><<a href="mailto:avholloway%2Bcisco-voip@gmail.com">avholloway+cisco-voip@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Awesome! I am on 8.5(1)SU1, and will try multiple SFTP solutions. Thanks again for the replies.<div><br></div><div>The reason I would want to go above the 15GB threshold is simply to "use what I paid for." Well, not me, the client.</div>
<div><br></div><div>See, an MCS-7835-I3 is stated to hold 20-30 minutes of audio for up to 4,000 users, or 240,000 minutes. Well, I don't have 4,000 users, just over 1,000 in fact, but I still want to use that 240,000 minutes, which would give me 200-240 minutes per user.</div>
<div><br></div><div>I wouldn't disagree with anyone if they said that logic was flawed. ;)</div><div><br></div><div><font color="#888888">Anthony</font><div><div></div><div class="h5"><br><br><div class="gmail_quote">
On Wed, Mar 23, 2011 at 8:41 AM, Pat Hayes <span dir="ltr"><<a href="mailto:pat-cv@wcyv.com" target="_blank">pat-cv@wcyv.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">To the original question of whether or not you can specify over the<br>
DRS recommended 15 gigs, yes, you can, but why would you want to? DRS<br>
being the only supported method of periodic backups, you are<br>
potentially putting your system at risk by going outside of that.<br>
<br>
For problems backing up the mailbox store, I think there are two main<br>
ones - first, the SFTP server you use needs to support file uploads<br>
that large. Check the archives for details on some known problem<br>
servers. You can verify easily enough by trying to manually upload a<br>
large file to your server, if it is going to fail it usually fails<br>
around 1 or 2 gigs. Second, defect CSCtf40892 can cause your backup to<br>
stall out and fail, usually around the 3 gig mark. Check the bug for<br>
full details, but essentially everything 7.x prior to 7.1(5b)su3 and<br>
8.x prior to 8.5(1) is impacted. If you can get past those two issues,<br>
it should be smooth sailing :-)<br>
<div><div></div><div><br>
On Tue, Mar 22, 2011 at 7:49 PM, Bill Simon <<a href="mailto:bills@psu.edu" target="_blank">bills@psu.edu</a>> wrote:<br>
> All,<br>
><br>
> We have a 10k user base and about 10GB mail store. Backups (DRS) seldom<br>
> worked on CUC 7.1. Just last weekend upgraded to 8.5 and backups are working<br>
> fine for this whole mail store. SFTP backups to a Linux server/OpenSSH.<br>
><br>
> Backups and increased scalability were the reasons we moved to 8.5. If<br>
> you've got a large system, consider moving to this version.<br>
><br>
><br>
> On 3/22/11 7:19 PM, Erick B. wrote:<br>
>><br>
>> Hmm... yea, on the 8.02 I have it always fails at just over a gig on<br>
>> both mailstores> 1 gig. The one mailstore we don't backup the<br>
>> messages in anymore however, just a lot of mailboxes for various<br>
>> sites.<br>
>><br>
>> I've worked with TAC on this in past, and they didn't suggest using<br>
>> more mailstores to help with the backup issue. We had tried a dozen or<br>
>> so different SFTP servers and all failed at a gig most of time, so we<br>
>> ruled out SFTP server as problem. Any mailstore less then a gig backs<br>
>> up fine.<br>
>><br>
>> I'll make some more mailstores to see what the limit is.<br>
>><br>
>> Also, can't move the system mailboxes off the default mailstore.<br>
>><br>
>><br>
>> On Tue, Mar 22, 2011 at 5:49 PM, Jobe Gates<<a href="mailto:jobe@gates-tribe.com" target="_blank">jobe@gates-tribe.com</a>> wrote:<br>
>>><br>
>>> Mine was up to 6GB's so yes it should go over 1. I thought 5 was the<br>
>>> limit on 7.x. Not sure about 8.<br>
>>><br>
>>><br>
>>> Thanks,<br>
>>> Jobe<br>
>>><br>
>>> On Mar 22, 2011, at 6:18 PM, "Erick B."<<a href="mailto:erickbee@gmail.com" target="_blank">erickbee@gmail.com</a>> wrote:<br>
>>><br>
>>>> I am having DRS fail at 1 gig, with mailstores over 1 gig in size.<br>
>>>> I've recently split a client into 5 mailstores now to get past the drs<br>
>>>> issue.<br>
>>>><br>
>>>><br>
>>>> this is with unity connection 8.02<br>
>>>><br>
>>>> so drs should be able to do larger then 1 gig? on the ones it fails on<br>
>>>> the drs backup process sits at 40% for awhile then fails....<br>
>>>><br>
>>>> Does anyone know if there is a limit to # of mailstores you can have?<br>
>>>><br>
>>>><br>
>>>> On Tue, Mar 22, 2011 at 3:54 PM, Jobe Gates<<a href="mailto:jobe@gates-tribe.com" target="_blank">jobe@gates-tribe.com</a>><br>
>>>> wrote:<br>
>>>>><br>
>>>>> I've had DRS problems with large stores. This was on 7.1 and there was<br>
>>>>> a known bug if you go over 10GB it would fail.<br>
>>>>><br>
>>>>> Thanks,<br>
>>>>> Jobe<br>
>>>>><br>
>>>>> On Mar 22, 2011, at 4:37 PM, Tanner Ezell<<a href="mailto:tanner.ezell@gmail.com" target="_blank">tanner.ezell@gmail.com</a>><br>
>>>>> wrote:<br>
>>>>><br>
>>>>>> Certainly,<br>
>>>>>><br>
>>>>>> If you haven't already check out the design guide for CUC:<br>
>>>>>><br>
>>>>>><br>
>>>>>> <a href="http://www.cisco.com/en/US/docs/voice_ip_comm/connection/8x/design/guide/8xcucdgpdf.pdf" target="_blank">http://www.cisco.com/en/US/docs/voice_ip_comm/connection/8x/design/guide/8xcucdgpdf.pdf</a><br>
>>>>>><br>
>>>>>> Section 6 page 4 includes notes about scalability specifically the 2GB<br>
>>>>>> performance limitation I mentioned.<br>
>>>>>><br>
>>>>>> Regarding mail box size, I cannot speak to that I'm afraid. I have not<br>
>>>>>> been in a deployment that used such a large mail box.<br>
>>>>>><br>
>>>>>> Also, the CUC guide contains specific sections on scaling which will<br>
>>>>>> probably be on use to you.<br>
>>>>>><br>
>>>>>> Tanner<br>
>>>>>><br>
>>>>>> On Tue, Mar 22, 2011 at 1:29 PM, Anthony Holloway<br>
>>>>>> <<a href="mailto:avholloway%2Bcisco-voip@gmail.com" target="_blank">avholloway+cisco-voip@gmail.com</a>> wrote:<br>
>>>>>>><br>
>>>>>>> Thank you Tanner. This is for a 1,200 user deployment on a pair of<br>
>>>>>>> MCS-7835-I3's, with 300GB HDD space, and 4GB of memory.<br>
>>>>>>> Do you have a source for the 2GB per mailbox comment, or is that<br>
>>>>>>> coming from<br>
>>>>>>> experience?<br>
>>>>>>> Also, can you comment on the 15GB per mailbox store, as it pertains<br>
>>>>>>> to DRS<br>
>>>>>>> backing up at a rate of 3GB/hr?<br>
>>>>>>> Anthony<br>
>>>>>>><br>
>>>>>>> On Tue, Mar 22, 2011 at 3:05 PM, Tanner Ezell<<a href="mailto:tanner.ezell@gmail.com" target="_blank">tanner.ezell@gmail.com</a>><br>
>>>>>>> wrote:<br>
>>>>>>>><br>
>>>>>>>> Mailbox sizes above 2GB are not recommend for performance reasons. I<br>
>>>>>>>> don't believe there is a hard limit on mailbox size.<br>
>>>>>>>><br>
>>>>>>>> Depending on how many users you are supporting and the hardware<br>
>>>>>>>> running the platform will really determine the best course of<br>
>>>>>>>> action.<br>
>>>>>>>> Anything less than a 50-100 users I wouldn't worry about, beyond<br>
>>>>>>>> that<br>
>>>>>>>> you need to take performance into consideration.<br>
>>>>>>>><br>
>>>>>>>> On Tue, Mar 22, 2011 at 10:03 AM, Anthony Holloway<br>
>>>>>>>> <<a href="mailto:avholloway%2Bcisco-voip@gmail.com" target="_blank">avholloway+cisco-voip@gmail.com</a>> wrote:<br>
>>>>>>>>><br>
>>>>>>>>> Unity Gurus,<br>
>>>>>>>>> I am reading up on the what's what with Mailbox Stores in CUC 8x,<br>
>>>>>>>>> and I<br>
>>>>>>>>> have<br>
>>>>>>>>> two questions:<br>
>>>>>>>>> 1. How closely should I stick to the 15GB per mailbox store for DRS<br>
>>>>>>>>> purposes?<br>
>>>>>>>>> 2. Ignoring DRS concerns, how large can a mailbox store be? All of<br>
>>>>>>>>> available<br>
>>>>>>>>> disk space?<br>
>>>>>>>>> In general, can you provide any real world considerations, tips, or<br>
>>>>>>>>> warnings<br>
>>>>>>>>> about going down this path?<br>
>>>>>>>>> Thanks.<br>
><br>
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