Thinking about a Windows-hosted build process that will periodically drop files to disk to be replicated to several other Windows Servers in the same datacenter. The other machines would run IIS, and serve those files to the masses. The total corpus size would be millions of files, 100's of GB of data. It'd have to deal with possible ...
So we've decided on an EMC NX4 for our storage setup. Database workload Write: ~220 IOPS Read: ~6 IOPS Web workload Write: ~10 IOPS Read: ~55 IOPS I had planned to go for 5 x 15k SAS disks in RAID 10 + hot spare for our databases, and then a 7 x 7,2k SATA RAID 6 + hot spare for our web data. However, EMC conveniently forgot to mentio...
If an application is installed to a SAN and the process crashes, can a core dump be written to the SAN partition? I've been trying to track down an issue where our process dies and no core is generated, thus no stack. Both cases were in two completely separate Solaris environments. ulimit -c is unlimited, pstack is in the path. In my...
Is NAS / SAN + HTTP server a good solution for serving large number of static files over the internet? ...
I'm setting up a Misc SQL Cluster (Windows 2008/SQL 2005 & 2008) that will be active/active and have about a dozen SQL instances on it. From the documentation I've read, I can't tell if each SQL instance will need its own LUN, or if I can have a single, really big LUN created, and then create a dozen different partitions on that LUN (one...
Prior to Vista (2003, XP) Windows had a key in the registry HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\dmio\Boot Info\Primary Disk Group which indicated which dynamic disk group is imported/active on this installation. Since Vista, this key is gone. Still, the OS needs to store that info in some way, since the same disk gro...
I'm trying to do some tuning for Oracle on Linux boxes living on SAN based infrastructure. I'm looking specifically for tools that would allow us to profile IO per process (or per process tree would be even better). My questions are? What are the tools that would be recommended for this kind of task? What other useful metrics should I ...
SQL Server has encountered 1 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file [T:\MSSQL\DATA\%file_name%] in database [%DB_name%] (2). The OS file handle is 0×00000838. The offset of the latest long I/O is: 0×000000ebdc0000 Has anyone encountered and solved this? ...
I'm the administrator for a company intranet and I'd like to start producing videos. However, we have a very small bandwidth tunnel between our locations, and I'd like to avoid hogging it by streaming videos by multiple users. I'd like to synchronize the files to servers at each of the locations. Then I'd like the browser (or the intran...
I want to add San Storage support in my application. Is there a standard protocol that I can use to communicate with all san storage devices like EMC Centera, Hitachi, NetApp or do I have to use library specific to each vendor? In a nutshell i'd like to save data on device and read it back. I know these devices can be mounted as drives ...