topic Re: Can DS14MK2's w/ ESH4 Mods &amp; 15k drives be set to 4gb? in ONTAP Discussions https://community.netapp.com/t5/ONTAP-Discussions/Can-DS14MK2-s-w-ESH4-Mods-amp-15k-drives-be-set-to-4gb/m-p/5431#M1128 <HTML><HEAD></HEAD><BODY><P>Not much really....the sole exception is if you have shelves out there with original ESH modules you'll need to sell/install ESH4 modules in their place before going to ONTap 7.3.x or a newer 31x0 head.</P></BODY></HTML> Sun, 18 Apr 2010 05:55:16 GMT amiller_1 2010-04-18T05:55:16Z Can DS14MK2's w/ ESH4 Mods & 15k drives be set to 4gb? https://community.netapp.com/t5/ONTAP-Discussions/Can-DS14MK2-s-w-ESH4-Mods-amp-15k-drives-be-set-to-4gb/m-p/5421#M1122 <HTML><HEAD></HEAD><BODY><P>What is the benefit of upgrading a DS14MK2 shelf's to ESH4 Mods? I was told DS14MK2 shelves cannot do 4gb?</P></BODY></HTML> Thu, 05 Jun 2025 07:15:59 GMT https://community.netapp.com/t5/ONTAP-Discussions/Can-DS14MK2-s-w-ESH4-Mods-amp-15k-drives-be-set-to-4gb/m-p/5421#M1122 phubbard 2025-06-05T07:15:59Z Re: Can DS14MK2's w/ ESH4 Mods & 15k drives be set to 4gb? https://community.netapp.com/t5/ONTAP-Discussions/Can-DS14MK2-s-w-ESH4-Mods-amp-15k-drives-be-set-to-4gb/m-p/5426#M1125 <HTML><HEAD></HEAD><BODY><PRE __jive_macro_name="quote" class="jive_text_macro jive_macro_quote"><P>I was told DS14MK2 shelves cannot do 4gb?</P></PRE><P>That's correct.</P></BODY></HTML> Wed, 07 Apr 2010 16:39:12 GMT https://community.netapp.com/t5/ONTAP-Discussions/Can-DS14MK2-s-w-ESH4-Mods-amp-15k-drives-be-set-to-4gb/m-p/5426#M1125 aborzenkov 2010-04-07T16:39:12Z Re: Can DS14MK2's w/ ESH4 Mods & 15k drives be set to 4gb? https://community.netapp.com/t5/ONTAP-Discussions/Can-DS14MK2-s-w-ESH4-Mods-amp-15k-drives-be-set-to-4gb/m-p/5431#M1128 <HTML><HEAD></HEAD><BODY><P>Not much really....the sole exception is if you have shelves out there with original ESH modules you'll need to sell/install ESH4 modules in their place before going to ONTap 7.3.x or a newer 31x0 head.</P></BODY></HTML> Sun, 18 Apr 2010 05:55:16 GMT https://community.netapp.com/t5/ONTAP-Discussions/Can-DS14MK2-s-w-ESH4-Mods-amp-15k-drives-be-set-to-4gb/m-p/5431#M1128 amiller_1 2010-04-18T05:55:16Z Re: Can DS14MK2's w/ ESH4 Mods & 15k drives be set to 4gb? https://community.netapp.com/t5/ONTAP-Discussions/Can-DS14MK2-s-w-ESH4-Mods-amp-15k-drives-be-set-to-4gb/m-p/5436#M1130 <HTML><HEAD></HEAD><BODY><P>I agree with aborzenkov but as always it depends on your situation, so maybe Andrew is also right: of course you can replace the ESH2 modules of an DS14mk2 with ESH4 controllers - but the backplane of the shelf probably still is not able to handle 4GB, and the disks of course also have a 2GB interface. So it is questionable if you will get any performance benefit of inserting ESH4 or if it is just a waste of money. But perhaps you have to, because this ESH2 is the only remaining controller in a 4GB loop?</P><P></P><P>I had the same issue long ago with DS14mk (ESH) and DS14mk2 (ESH2)...</P><P></P><P>Markus</P></BODY></HTML> Wed, 21 Apr 2010 14:08:42 GMT https://community.netapp.com/t5/ONTAP-Discussions/Can-DS14MK2-s-w-ESH4-Mods-amp-15k-drives-be-set-to-4gb/m-p/5436#M1130 mheimberg 2010-04-21T14:08:42Z