So I continued testing and increased the file history size because the data I am trying to back up consists of more than 10000000 (default) files/directories. So far so good.
I only need some verification on one topic which is related to the directive above. When using this directive the Bareos documentation points out: "Please note! This uses a large memory mapped file (File History Size ∗256=⇒ around 2,3 GB for the File History Size = 10000000). On 32-bit systems or if a memory limit for the user running the Bareos Director (normally bareos) exists (verify by su - bareos -s /bin/sh -c "ulimit -a"), this may fail. Version >= 15.2.4" I also assume that the file which is created during the backup is mapped to physical memory. So if I understand this correctly I would need around 7GB of RAM for a backup job which consists of 30000000 files/directories ( (256*30000000)/(1024^3) ). And with 7 jobs backing up the same amount of files/directories I would need 7 times the amount of RAM (around 50GB). As far as I can tell this matches what I see in the monitoring during my testing. So if I am right (?) the only option to use less RAM would be to backup less files/directories per job. Please correct me if I am wrong. I would be glad if someone can enlighten me. Cheers Yannic -- You received this message because you are subscribed to the Google Groups "bareos-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
