Hi All, We are under the process of migrating to DS8870 from DS8100. >From DS8870 box, while I create new Arrays with Arraysite capacity of 2400GB(8*300GB), I get around 1652GB of usable storage while rest will go for Parity and Spare.
We use SSD disks and when I create Arrays is picks RAID5 which automatically picked RAID 5 (6+P+S) and thus causing loss of 750 GB of storage. We need RAID 5 (7+P) for 'Development' LPAR's to increase the usable storage but DS8000 GUI is not allowing me chose RAID 5 (7+P) combination. Can you please advice how to make Arrays pick RAID 5 (7+P) combination.? Regards On Wed, Jun 13, 2012 at 3:46 AM, Ronald Hawkins <[email protected]>wrote: > Don, > > I suggest that you look into your vendor's implementation of encryption of > data > at rest. > > If you have HDS then all RAID schemes and disk types are supported (HDD, > SSD and > SATA) and there is no performance impact. I believe EMC and IBM also > support > Encryption of data at rest. > > With encryption of data at rest there is no exposure as you describe, and > there';s no need to scrub/erase/degauss/destroy your disk drives when you > replace them. > > Ron > > > > > > ________________________________ > From: "Grinsell, Don" <[email protected]> > To: [email protected] > Sent: Fri, June 8, 2012 2:16:13 PM > Subject: [IBM-MAIN] Failed Disk Data Exposure > > Here's a Friday topic: With modern disk arrays, e.g. DS8000, what is the > real > exposure of meaningful residual data being recovered from a single drive > out of > the array. I can't seem to find anything definitive other than a lot of > "data > may be recoverable" statements from vendors selling secure erase services. > Just > curious if anybody has any hard data to demonstrate an exposure or not. > > ________________________________ > Donald Grinsell > State of Montana > 406-444-2983 > [email protected]<mailto:[email protected]> > "Any fool can write code that a computer can understand. Good programmers > write > code that humans can understand." ~ Martin Fowler > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
