Hi -

 

I just dropped a 120 GB cache drive into my 5.0-rc16c unraid server. The server picked it up and formatted it, but it doesn't seem to be used. I have it set to "use cache disk: yes". The min free space is the default, 20GB, I believe.

 

when I copy some files over the network to "//tower/Movies", i can immediately find them in "/mnt/disk1/Movies" or "/mnt/disk2/Movies". The cache drives always appears to have exactly zero files or folders on it.

 

Here is the syslog of the cache drive, if it's helpful. I feel like there must be something silly that I've missed.

 

Thanks

matt

 

Aug 18 16:54:49 Tower kernel: Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Aug 18 16:54:49 Tower kernel: Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Aug 18 16:54:49 Tower kernel: Mount-cache hash table entries: 512
Aug 18 16:54:49 Tower kernel: PCI: pci_cache_line_size set to 64 bytes
Aug 18 16:54:49 Tower kernel: ehci-pci 0000:00:1d.7: cache line size of 32 is not supported
Aug 18 16:54:49 Tower kernel: sd 0:0:0:0: [sda] Assuming drive cache: write through (Drive related)
Aug 18 16:54:49 Tower kernel: sd 0:0:0:0: [sda] Assuming drive cache: write through (Drive related)
Aug 18 16:54:49 Tower kernel: sd 0:0:0:0: [sda] Assuming drive cache: write through (Drive related)
Aug 18 16:54:49 Tower kernel: sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA (Drive related)
Aug 18 16:54:49 Tower kernel: scsi5 : ata_piix (Drive related)
Aug 18 16:54:49 Tower kernel: ata5: SATA max UDMA/133 cmd 0xc080 ctl 0xc000 bmdma 0xb800 irq 19 (Drive related)
Aug 18 16:54:49 Tower kernel: sd 2:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA (Drive related)
Aug 18 16:54:49 Tower kernel: ata5.01: ATA-9: Samsung SSD 840 Series, S19HNSAD628137X, DXT08B0Q, max UDMA/133 (Drive related)
Aug 18 16:54:49 Tower kernel: ata5.01: 234441648 sectors, multi 16: LBA48 NCQ (depth 0/32) (Drive related)
Aug 18 16:54:49 Tower kernel: ata5.01: configured for UDMA/133 (Drive related)
Aug 18 16:54:49 Tower kernel: scsi 5:0:1:0: Direct-Access     ATA      Samsung SSD 840  DXT0 PQ: 0 ANSI: 5 (Drive related)
Aug 18 16:54:49 Tower kernel: sd 5:0:1:0: [sdf] 234441648 512-byte logical blocks: (120 GB/111 GiB) (Drive related)
Aug 18 16:54:49 Tower kernel: sd 5:0:1:0: [sdf] Write Protect is off (Drive related)
Aug 18 16:54:49 Tower kernel: sd 5:0:1:0: [sdf] Mode Sense: 00 3a 00 00 (Drive related)
Aug 18 16:54:49 Tower kernel: sd 5:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA (Drive related)
Aug 18 16:54:49 Tower kernel: sd 5:0:1:0: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA (Drive related)
Aug 18 16:54:49 Tower kernel: sd 6:0:0:0: [sdg] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA (Drive related)
Aug 18 16:54:49 Tower kernel: sd 6:0:1:0: [sdh] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA (Drive related)
Aug 18 16:54:49 Tower kernel: sd 4:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA (Drive related)
Aug 18 16:54:49 Tower kernel:  sdf: sdf1 (Drive related)
Aug 18 16:54:49 Tower kernel: sd 5:0:1:0: [sdf] Attached SCSI disk (Drive related)
Aug 18 16:54:49 Tower emhttp: Samsung_SSD_840_Series_S19HNSAD628137X (sdf) 117220824 (Drive related)
Aug 18 16:54:49 Tower emhttp: shcmd (14): /usr/local/sbin/set_ncq sdf 1 $stuff$> /dev/null (Drive related)
Aug 18 16:54:49 Tower emhttp: shcmd (15): /usr/sbin/hdparm -S0 /dev/sdf $stuff$> /dev/null (Drive related)
Aug 18 16:54:50 Tower emhttp: shcmd (31): set -o pipefail ; mount -t reiserfs -o user_xattr,acl,noatime,nodiratime /dev/sdf1 /mnt/cache |$stuff$ logger (Drive related)
Aug 18 16:54:50 Tower kernel: REISERFS (device sdf1): found reiserfs format "3.6" with standard journal (Routine)
Aug 18 16:54:50 Tower kernel: REISERFS (device sdf1): using ordered data mode (Routine)
Aug 18 16:54:50 Tower kernel: REISERFS (device sdf1): journal params: device sdf1, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 (Routine)
Aug 18 16:54:50 Tower kernel: REISERFS (device sdf1): checking transaction log (sdf1) (Drive related)
Aug 18 16:54:50 Tower kernel: REISERFS (device sdf1): Using r5 hash to sort names (Routine)
Aug 18 16:54:50 Tower emhttp: shcmd (32): chmod 777 '/mnt/cache' (Other emhttp)
Aug 18 16:54:50 Tower emhttp: shcmd (33): chown nobody:users '/mnt/cache' (Other emhttp)
Aug 18 17:58:11 Tower emhttp: shcmd (44): /usr/sbin/hdparm -y /dev/sdf $stuff$> /dev/null (Drive related)
Aug 18 18:06:44 Tower unmenu[1120]: Processing section "[cache]"

You must also enable "Use cache disk" for each unRaid Share you want to have use it.

Yup, that was it. New files are correctly appearing in mnt/cache and not mnt/disk_x.

 

Now, we'll have to see if the default mover cron job works well.