Talk:Hierarchical storage management/Archives/2013

HSM vs, FS

Was HSM one of the ideas/facilities retained or carried over from FS when that project was canceled? I don't know enough about the architecture of FS to guess. Peter Flass (talk) 03:38, 20 November 2011 (UTC)

Merge Tiered storage into Hierarchical storage management

HSM is a well-known term (together with ILM) and HSM article sufficiently describes technical aspects of a problem. Sure, tiered storage can be defined as a superset of HSM and several other minor cases, but I think it is pointless. --Kubanczyk 22:30, 6 September 2007 (UTC)

Tiered Storage can be present for other reasons than HSM. Consider the ITIL Service Management topic of Service Level Agreements and Operational Level Agreements. Tiers can be presented as an option for storage without HSM tools moving data into or out of it, based on SLA and/or attributes such as price/performance. Thus, you could have a high performing, highly available tier, and a lower priced economy tier that may have different performance, availability and/or price attributes. A data center could offer both tiers, and an application could wholly utilize one or the other with no need for an HSM solution to migrate data. While the use of tiers can be significantly enhanced by HSM, they should remain separate topics. Architect Ed 21:24, 8 October 2007 (UTC)

Disagree: Although I grant that Tiered Storage is very closely related to HSM, I don not think that merging both topics would be a good idea. Tiered storage gains its value from HSM, but HSM can be looked upon without much thought about hardware. Thus, I think this should be kept separate. —Preceding unsigned comment added by 195.212.29.163 (talk) 12:32, 12 November 2007 (UTC)

Agree: also can add the fact that a HSM is storage policies executed to automate the movement of files within Tiered Storage Rudnuts (talk) 15:36, 20 December 2007 (UTC)

Yes, the tiered storage and HSM articles should be merged. The two are too conceptually close to be considered different. Public Menace (talk) 02:55, 26 December 2007 (UTC)

Disagree: HSM (hierarchical storage management)is an applications and teired storage is a plan or concept. HSM applications are used to move binary large objects (BLOBs)for one tier type to another, usual from an online disk, to a nearline disk, tape or optical device. The HSM products are primarily used for data archive. While tiered storage is based on the needs of an application or content used by an application. Here you look at data access requirements, overall throughput, storage capacity, processing type, and access types. This can range from a highly transactional database to a long term offline archive. --PresArch 16:04, 18 February 2008 (UTC) —Preceding unsigned comment added by Carlwatts (talk • contribs)

Agree.. Tiered Storage is little more than a stub. I'd say break it off later if it grows into something big. --32.97.110.143 (talk) 18:29, 7 March 2008 (UTC)

Agree. TS is one way of doing HS, worthy of a paragraph in HS. Ray Van De Walker (talk) 01:06, 30 April 2008 (UTC)

Agree. HSM and TS in current implementations are sufficiently different that their descriptions should not be merged. They may be cross-referenced to show the differences, but they are not similar enough to be merged. In addition to the points made above, here are a few other illustrations of differences. HSM is typically file oriented. TS is Logical Unit oriented. HSM relies heavily on automatic movement. TS is frequently totally manually managed, although it can have an automatic movement involved. HSM typically moves data to tape. TS does not involve tape. TS typically involves active application access. HSM is more targeted as a deep store of infrequently accessed data. —Preceding unsigned comment added by 15.219.153.74 (talk) 23:28, 24 October 2008 (UTC)

I think tiered storage has enough importance not to be deleated but it should be merged. JMAN1156

• They are not the same alas. From Ulf Troppens; Rainer Erkens; Wolfgang Mueller-Friedt (2011). Storage Networks Explained: Basics and Application of Fibre Channel SAN, NAS, iSCSI, InfiniBand and FCoE (2nd ed.). John Wiley & Sons. p. 309. ISBN 978-1-119-96543-5. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help): "Due to the long life span of archive data, special importance is given to the cost-efficient storage and management of the data. One important technique for this is Hierarchical Storage Management (HSM), which comprises multiple storage levels (tiered storage) and capabilities for automated data migration between these tiers." So automated storage tiering is more or less equivalent to HSM, but not just tiering. Someone not using his real name (talk) 23:00, 20 December 2013 (UTC)