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Dec
23
comment Splitting a shared pool of disks in a SAN into numerous LUNS
@sysadmin1138 Yeah as a rule of thumb you should avoid having disks with wildly different performance or capacity in the same disk group. In practice we tend to have all FC disks in one group and all FATA disks in another. There is some capacity and potentially performance loss from having different capacity disks in the same group (when we expand new disks are often bigger), but OTOH as Chopper3 said there is a benefit from having as few DG's as possible, so it's a compromise.
Dec
23
comment Splitting a shared pool of disks in a SAN into numerous LUNS
I'm not sure where you're actually disagreeing with ynguldyn? The question was whether to have a single LUN (~vdisk) or multiple LUN's on the same pool (~disk group). And ynguldyn says there's no performance difference, which is correct. Also, to be pedantic, EVA's don't have hot standby disks, they use distributed sparing.
Dec
23
answered Tuning NFS client/server stack
Dec
22
answered Time sync in data center
Dec
3
answered How to profile for HDD usage pattern?
Dec
2
answered Performance differences between 2.5“ vs. 3.5” SAS
Dec
2
comment 64bit UnixODBC and FreeTDS: a bug in libtdsodbc.so?
You're right, blaming php-odbc is premature at this point; it might be there or it might not. The bug could also be in the odbc-tds bridge as you mention, but not necessarily. It might be that php-odbc stores a pointer into an 32-bit integer (this was the reason for the problem I reported to Redhat), but it bombs out only when it gets to the odbc-tds bridge. Also, see my edited reply for a possible workaround that unfortunately requires some programming effort on your effort to convert to PDO.
Dec
2
awarded  Editor
Dec
2
revised 64bit UnixODBC and FreeTDS: a bug in libtdsodbc.so?
Mention using DBLIB
Dec
2
answered 64bit UnixODBC and FreeTDS: a bug in libtdsodbc.so?
Nov
27
answered Is my centOS dedicated server caching disk files appropriately, or not?
Nov
24
answered Small 64-bit linux server distro with low memory footprint?
Oct
22
comment Are Extended Validation SSL certificates effective?
+1 Just like the rest of the CA business, the EV thing is a ripoff.
Oct
14
answered Mount a samba share as root using smbfs in fstab
Oct
14
answered Server Systems under Extreme Environmental Conditions
Oct
13
answered Xen sharing partition physical vs. NFS
Oct
13
answered Concurrent NFS access
Oct
13
answered File locks on an NFS?
Oct
13
answered Samba sharing an NFS mount point
Oct
2
answered CentOS user management through LDAP