Spooling is definetely off. using tar to dump the directory 3 times now.
1. Before first tar: [root@dkarhbus02 download]# sdfscli -volume-info Volume Capacity : 1.5 TB Volume Current Size : 681 B Volume Max Percentage Full : Unlimited Volume Duplicate Data Written : 0 B Volume Unique Data Written: 96 KB Volume Data Read : 1.9 MB Volume Virtual Dedup Rate (Dup/Total Bytes Written) : 0% Volume Real Dedup Rate (DSE Size/Total Bytes Written) : -1.46195E7% Volume Actual Storage Savings (Unique Blocks Stored/Current Size) : -2.11037458194E9% [root@dkarhbus02 download]# 2. After first tar: [root@dkarhbus02 download]# sdfscli -volume-info Volume Capacity : 1.5 TB Volume Current Size : 6 GB Volume Max Percentage Full : Unlimited Volume Duplicate Data Written : 32 KB Volume Unique Data Written: 6 GB Volume Data Read : 1.9 MB Volume Virtual Dedup Rate (Dup/Total Bytes Written) : 0.0% Volume Real Dedup Rate (DSE Size/Total Bytes Written) : -221.98% Volume Actual Storage Savings (Unique Blocks Stored/Current Size) : -221.98% [root@dkarhbus02 download]# 3. After second tar: [root@dkarhbus02 download]# sdfscli -volume-info Volume Capacity : 1.5 TB Volume Current Size : 12.1 GB Volume Max Percentage Full : Unlimited Volume Duplicate Data Written : 12.1 GB Volume Unique Data Written: 96 KB Volume Data Read : 1.9 MB Volume Virtual Dedup Rate (Dup/Total Bytes Written) : 100.0% Volume Real Dedup Rate (DSE Size/Total Bytes Written) : -60.99% Volume Actual Storage Savings (Unique Blocks Stored/Current Size) : -60.99% [root@dkarhbus02 download]# 4. After the third tar: [root@dkarhbus02 download]# sdfscli -volume-info Volume Capacity : 1.5 TB Volume Current Size : 18.1 GB Volume Max Percentage Full : Unlimited Volume Duplicate Data Written : 18.1 GB Volume Unique Data Written: 128 KB Volume Data Read : 1.9 MB Volume Virtual Dedup Rate (Dup/Total Bytes Written) : 100.0% Volume Real Dedup Rate (DSE Size/Total Bytes Written) : -7.33% Volume Actual Storage Savings (Unique Blocks Stored/Current Size) : -7.33% [root@dkarhbus02 download]# Which looks good to me. Now, we delete the tar files and do 3 backups using bacula: 1. After first backup: [root@dkarhbus02 ~]# sdfscli -volume-info Volume Capacity : 1.5 TB Volume Current Size : 6 GB Volume Max Percentage Full : Unlimited Volume Duplicate Data Written : 0 B Volume Unique Data Written: 6 GB Volume Data Read : 1.9 MB Volume Virtual Dedup Rate (Dup/Total Bytes Written) : 0% Volume Real Dedup Rate (DSE Size/Total Bytes Written) : -321.8% Volume Actual Storage Savings (Unique Blocks Stored/Current Size) : -321.81% You have new mail in /var/spool/mail/root [root@dkarhbus02 ~]# 2. After second backup: [root@dkarhbus02 bacula]# sdfscli -volume-info Volume Capacity : 1.5 TB Volume Current Size : 12.1 GB Volume Max Percentage Full : Unlimited Volume Duplicate Data Written : 0 B Volume Unique Data Written: 12.1 GB Volume Data Read : 1.9 MB Volume Virtual Dedup Rate (Dup/Total Bytes Written) : 0% Volume Real Dedup Rate (DSE Size/Total Bytes Written) : -160.9% Volume Actual Storage Savings (Unique Blocks Stored/Current Size) : -160.9% [root@dkarhbus02 bacula]# 3. After the third backup: [root@dkarhbus02 bacula]# sdfscli -volume-info Volume Capacity : 1.5 TB Volume Current Size : 18.1 GB Volume Max Percentage Full : Unlimited Volume Duplicate Data Written : 0 B Volume Unique Data Written: 18.1 GB Volume Data Read : 2 MB Volume Virtual Dedup Rate (Dup/Total Bytes Written) : 0% Volume Real Dedup Rate (DSE Size/Total Bytes Written) : -107.27% Volume Actual Storage Savings (Unique Blocks Stored/Current Size) : -107.27% You have new mail in /var/spool/mail/root [root@dkarhbus02 bacula]# So, looking at Volume Duplicate Data Written and Volume Unique Data Written it's obvious that the data created by bacula is not a good candidate for deduplication. I haven't got the DXi online right now, but I'll test it out when I do and get back on that. /tony +---------------------------------------------------------------------- |This was sent by tony.alb...@gmail.com via Backup Central. |Forward SPAM to ab...@backupcentral.com. +---------------------------------------------------------------------- ------------------------------------------------------------------------------ Master HTML5, CSS3, ASP.NET, MVC, AJAX, Knockout.js, Web API and much more. Get web development skills now with LearnDevNow - 350+ hours of step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122812 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
