IBM System x3850 X6 39The following table lists the hard disk drives that are supported by EXP2524 external expansionenclosures.Table 25. Drive options for EXP2524 external expansion enclosuresPart number Description Maximum quantity supportedper one enclosure2.5" NL SAS HS HDDs49Y1898 500GB 7,200 rpm 6Gb SAS NL 2.5" HDD 2481Y9952 1TB 7,200 rpm 6Gb SAS NL 2.5" HDD 242.5" SAS HS HDDs49Y1896 146GB 15,000 rpm 6Gb SAS 2.5" HDD 2481Y9944 300GB 15,000 rpm 6Gb SAS 2.5" HDD 2400W1595 600GB 10,000 rpm 6Gb SAS 2.5" HDD 2446W0970 900GB 10,000 rpm 6Gb SAS 2.5" HDD 2446W0980 1.2TB 10,000 rpm 6Gb SAS 2.5" HDD 242.5" SAS HS SSDs49Y6072 200GB 6Gb SAS 2.5" SSD 2449Y6077 400GB 6Gb SAS 2.5" SSD 24External disk storage systemsThe following table lists the external storage systems that are supported by the server and can be orderedthrough the System x sales channel. The server might support other IBM disk systems that are not listedin this table. For more information, see the IBM System Storage Interoperation Center found athttp://www.ibm.com/systems/support/storage/ssic.Table 26. External disk storage systemsPart number Description1746A2D IBM System Storage DS3512 Express Dual Controller Storage System1746A2S IBM System Storage DS3512 Express Single Controller Storage System1746A4D IBM System Storage DS3524 Express Dual Controller Storage System1746A4S IBM System Storage DS3524 Express Single Controller Storage System181494H IBM System Storage DS3950 Model 94181498H IBM System Storage DS3950 Model 98181492H IBM System Storage EXP395 Expansion Unit1746A2E IBM System Storage EXP3512 Express Storage™ Expansion Unit1746A4E IBM System Storage EXP3524 Express Storage Expansion UnitFor more information, see the list of IBM Redbooks Product Guides in the System Storage category foundat http://www.redbooks.ibm.com/portals/systemx?Open&page=pg&cat=externalstorage.