> On Jun 10, 2016, at 5:19 AM, Eric Friedrich (efriedri) <[email protected]> 
> wrote:
> 
> Thanks James-
>  Looks like it detected the drive size properly, however the cache init is 
> still failing. I removed the /dev/ram* devices from storage.config just in 
> case they were causing a problem. I also added another 4GB virtual drive just 
> to see if more disk space was needed. 
> 
> [Jun  9 23:29:06.391] Server {0x7ffe0ceba800} DEBUG: (cache_init) 
> Store::read_config - ns = new Span; ns->init("/dev/vdb",-1), forced volume=1
> [Jun 10 12:16:43.157] Server {0x7f34c3dda800} DEBUG: (cache_init) 
> Store::read_config, fd = -1, 
> "/opt/trafficserver/etc/trafficserver/storage.config"
> [Jun 10 12:16:43.157] Server {0x7f34c3dda800} DEBUG: (cache_init) 
> Store::read_config: "/dev/vdb"
> [Jun 10 12:16:43.157] Server {0x7f34c3dda800} DEBUG: (cache_init) 
> Store::read_config - ns = new Span; ns->init("/dev/vdb",-1), forced volume=1
> [Jun 10 12:16:43.157] Server {0x7f34c3dda800} DEBUG: (cache_init) initialized 
> span '/dev/vdb'
> [Jun 10 12:16:43.157] Server {0x7f34c3dda800} DEBUG: (cache_init) 
> hw_sector_size=512, size=1073741824, blocks=131072, disk_id=0/64528, 
> file_pathname=1
> [Jun 10 12:16:43.157] Server {0x7f34c3dda800} DEBUG: (cache_init) 
> Store::read_config: "/dev/vdc"
> [Jun 10 12:16:43.157] Server {0x7f34c3dda800} DEBUG: (cache_init) 
> Store::read_config - ns = new Span; ns->init("/dev/vdc",-1), forced volume=1
> [Jun 10 12:16:43.157] Server {0x7f34c3dda800} DEBUG: (cache_init) initialized 
> span '/dev/vdc'
> [Jun 10 12:16:43.157] Server {0x7f34c3dda800} DEBUG: (cache_init) 
> hw_sector_size=512, size=4294967296, blocks=524288, disk_id=0/64544, 
> file_pathname=1
> [Jun 10 12:16:43.207] Server {0x7f34c3dda800} DEBUG: (cache_init) initialized 
> span '/opt/trafficserver/var/trafficserver'
> [Jun 10 12:16:43.207] Server {0x7f34c3dda800} DEBUG: (cache_init) 
> hw_sector_size=4096, size=33554432, blocks=4096, disk_id=64517/391104, 
> file_pathname=0
> [Jun 10 12:16:43.267] Server {0x7f34c3dda800} DEBUG: (cache_init) Cache::open 
> - proxy.config.cache.min_average_object_size = 131072
> [Jun 10 12:16:43.267] Server {0x7f34c3dda800} DEBUG: (cache_init) 
> CacheProcessor::cacheInitialized - theCache, total_size = 0 = 0 MB
> [Jun 10 12:16:43.267] Server {0x7f34c3dda800} DEBUG: (cache_init) 
> CacheProcessor::cacheInitialized - failed to initialize the cache for http: 
> cache disabled

Hmmm ... can you try again with "traffic_server -T cache" to capture more debug 
tags? Can you also file a Jira <https://issues.apache.org/jira/browse/TS> and 
attach a storage.config and volume.config that reproduces?

thanks


> 
> 
>> On Jun 9, 2016, at 5:34 PM, James Peach <[email protected]> wrote:
>> 
>> 
>>> On Jun 8, 2016, at 1:42 PM, Eric Friedrich (efriedri) <[email protected]> 
>>> wrote:
>>> 
>>> Using ATS v5.3.2, I have a 1GB virtual disk configured (via OpenStack) as 
>>> /dev/sdb. This is the only disk in my volume. There are a few other disks 
>>> in another volume, but I’m not troubleshooting those yet. 
>>> 
>>> When I start ATS, I see the following in diags.log:
>>> 
>>> [centos@beta1-edge2 ~]$ tail 
>>> /opt/trafficserver/var/log/trafficserver/diags.log 
>>> [Jun  8 20:27:05.327] Server {0x2b702a726700} WARNING: the size of volume 1 
>>> (0) is less than the minimum required volume size 128
>>> [Jun  8 20:27:05.327] Server {0x2b702a726700} WARNING: volume 1 is not 
>>> created
>>> [Jun  8 20:27:05.328] Server {0x2b702a726700} WARNING: failed to initialize 
>>> the cache for http: cache disabled
>>> [Jun  8 20:27:05.328] Server {0x2b702a726700} NOTE: cache disabled
>> 
>> It sounds like ATS wasn't able to probe the geometry for that volume. Can 
>> you run "traffic_server -T cache_init" and see what size it detected?
>> 
>>> 
>>> 
>>> Is any special action needed to get ATS to recognize and begin using the 
>>> disks?
>>> 
>>> Thanks!
>>> Eric
>>> 
>>> 
>>> 
>>> More details:
>>> [centos@beta1-edge2 ~]$ cat 
>>> /opt/trafficserver/etc/trafficserver/storage.config
>>> /dev/ram0 volume=2
>>> /dev/ram1 volume=2
>>> /dev/ram2 volume=2
>>> /dev/ram3 volume=2
>>> /dev/ram4 volume=2
>>> /dev/ram5 volume=2
>>> /dev/ram6 volume=2
>>> /dev/ram7 volume=2
>>> /dev/vdb volume=1
>>> [centos@beta1-edge2 ~]$ sudo fdisk -l /dev/vdb
>>> 
>>> Disk /dev/vdb: 1073 MB, 1073741824 bytes
>>> 16 heads, 63 sectors/track, 2080 cylinders
>>> Units = cylinders of 1008 * 512 = 516096 bytes
>>> Sector size (logical/physical): 512 bytes / 512 bytes
>>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>>> Disk identifier: 0x00000000
>> 
> 

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